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in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | do genetic mutations pass on through offspring ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | there 's obviously other primates that also have no tails , but apes definitely have no tails . and just to clarify , there 's kind of two families within apes and their common names are `` the lesser apes '' and `` the great apes . '' and the lesser apes - the lesser apes are things like gibbons , and the great apes a... | how can we generally know that our common ancestor lived approximately 2 million years ago ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | but why are monkeys and other apes not humans yet ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | if apes had to evolve so as to adapt themselves to the changing environment , how do we explain the fact that there are still apes present in this world ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | have apes ever been mutated to have tails ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | are the gorillas really the biggest apes , how come when i see them in the zoos the look smaller than humans ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | 0 , what is common between monkeys and apes , are apes evolved from them ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | how long have apes been around for ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | is evolution a particular kind of thermodynamics ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | why does human have a tailbone if we evolved from apes that have no tail ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | are monkeys lesser apes too ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | there 's obviously other primates that also have no tails , but apes definitely have no tails . and just to clarify , there 's kind of two families within apes and their common names are `` the lesser apes '' and `` the great apes . '' and the lesser apes - the lesser apes are things like gibbons , and the great apes a... | are gibbons the only lesser apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and just to clarify , there 's kind of two families within apes and their common names are `` the lesser apes '' and `` the great apes . '' and the lesser apes - the lesser apes are things like gibbons , and the great apes are things like chimpanzees and gorillas , and , me , or human beings ! so these right here , the... | are these vestiges of ancient favorable variations like clinging to mother 's hair ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | there 's obviously other primates that also have no tails , but apes definitely have no tails . and just to clarify , there 's kind of two families within apes and their common names are `` the lesser apes '' and `` the great apes . '' and the lesser apes - the lesser apes are things like gibbons , and the great apes a... | did all apes including the `` great '' and `` lesser '' came from one common ancestor ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | what is the difference between lesser apes and great apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | what is the difference between lesser and greater apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | is it possible humans are hairless with extraordinary cardiovascular endurance systems because we evolved from apes who in order to survive needed to work socially in groups to hunt down larger prey with tools over large distances by running them down to exhaustion ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | do you think that some day soon we can have the dna and evidence that would tell us how apes and human beings are in same family ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | so is that the only difference between apes and monkeys no tail ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | do apes have all the organs that humans have ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | could humans evolve any further ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | there 's obviously other primates that also have no tails , but apes definitely have no tails . and just to clarify , there 's kind of two families within apes and their common names are `` the lesser apes '' and `` the great apes . '' and the lesser apes - the lesser apes are things like gibbons , and the great apes a... | what common ancestor did we come from ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and just to clarify , there 's kind of two families within apes and their common names are `` the lesser apes '' and `` the great apes . '' and the lesser apes - the lesser apes are things like gibbons , and the great apes are things like chimpanzees and gorillas , and , me , or human beings ! so these right here , the... | and since spontaneous generation has been proven false , ( life coming from nonliving things ) where did that common ancestor come from ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | how do you differentiate lesser and greater apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | how come humans came to be anyway they are vulnerable ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | these are the great apes , and clearly this great ape right here did not have a great sense of style in 1994 . and really did n't feel the need to have a haircut ! | how come we have movable tums and other animals do n't ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | are lesser apes are are undevelopedin brains and body ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | how did apes transform to humans ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | if we evolved from apes , why are apes still here ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | how are humans similer to great apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | if we evolved from apes or split from `` our common ancestor '' , where is the bell curve ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | what makes great apes and lesser apes different ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | why did apes and humans evolve from a common ancestor , but in different paths , one leading to a highly evolved species , and a `` dumber '' , not so evolved species ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | how are humans related to apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | how come if we came from apes why are there still apes today ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | so humans are considered as apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | why we include as a great apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | what were moose developed by ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | or are they original creatures evolved from the dino age ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | what circumstances caused apes to evolve into humans ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | can the present apes be transformed into humans ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | would a wolf evolve from a dog ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | so these right here , these are the great apes . these are the great apes , and clearly this great ape right here did not have a great sense of style in 1994 . and really did n't feel the need to have a haircut ! | did we evolve from the monkey or ape species ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . | how many people almost died of laughter when they clicked on this video right after watching `` introduction to evolution and natural selection '' ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | do lesser apes always need to be small ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | plus if 99 % similarities between apes and human implies that human evolved from apes then why is it not true for a goat and a cow ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | so humans use to be abes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | and btw , do monkey considered as apes ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . | are apes related to humans ? |
in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . apes - apes have no tails . and it 's actually one of the main distinguishing characteristics of apes . there 's obviously other primat... | in the first video on evolution , i drew something that i called an ape , and then i drew a tail on it . and what i want to do in this video is clarify that that was absolutely wrong . | re- evolution : can any one of you give me any solid evidence for evolution ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | this is the natural log of the square root of x , this is v of u of x . so what i wan na do is i wan na take the derivative of this outside function with respect to this inside function . so the derivative of natural log of something , with respect to that something , is one over that something . | using leibniz ' notation , is it correct to say that whatever is in the function bracket defines what the derivative has been taken with respect to ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | well v prime of u of x , wherever we see the x , we replace it , let me write that a little bit neater , we replace that with a u of x , so v prime of u of x is going to be equal to , is going to be equal to one over u of x , one over u of x , which is equal to , which is equal to one over , u of x is just the square r... | wait a second ... .. , if we apply the chain rule to ln ( square root of x ) , why do n't we apply it to ln x ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | so it is a composition which tells you that , okay , if i 'm trying to find the derivative here , the chain rule is going to be very , very , very , very useful . and the chain rule tells us that f prime of x is going to be equal to the derivative of , you can view it as the outside function , with respect to this insi... | is n't ln x technically a composite function ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | one over the square root of x . this thing right over here , we have figured out , is one over the square root of x , and this thing , u prime of x , we figured out , is 1/2 times x to the negative 1/2 , and x to the negative 1/2 , i could rewrite that as 1/2 times one over x to the 1/2 , which is the same thing as 1/2... | do we not apply it because it involves a needless step as the derivative of x is 1 and 1 x 1/x is 1/x , or do we not apply it for another reason ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | well , we know how to take the derivative of u of x and v of x , u prime of x here , is going to be equal to , well remember , square root of x is just the same thing as x to 1/2 power , so we can use the power rule , bring the 1/2 out from so it becomes 1/2 x to the , and then take off one out of that exponent , so th... | if we were being logically rigorous , would we necessarily apply the chain rule to determine the derivative of ln x ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | so that is v of the square root of x , or v of u of x . so it is a composition which tells you that , okay , if i 'm trying to find the derivative here , the chain rule is going to be very , very , very , very useful . and the chain rule tells us that f prime of x is going to be equal to the derivative of , you can vie... | is it possible to use the product rule for this , does it give you the same outcome ? |
so we have here f of x being equal to the natural log of the square root of x . and what we wan na do in this video is find the derivative of f. and the key here is to recognize that f can actually be viewed as a composition of two functions . and we can diagram that out , what 's going on here ? well if you input an ... | well v prime of u of x , wherever we see the x , we replace it , let me write that a little bit neater , we replace that with a u of x , so v prime of u of x is going to be equal to , is going to be equal to one over u of x , one over u of x , which is equal to , which is equal to one over , u of x is just the square r... | are you absolutely positive one can not use the product rule for ln sqrt x ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | if a nervous system is needed for an animal to display behavior , do sponges , who do n't have a nervous system , have any behavior ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | when a wave reaches the end of the neuron , it triggers a release of neurotransmitters from the neuron through exocytosis . those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . by this time , so many sodium ions have gotten inside the fir... | how long does a action potential usually last ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the axon is also covered in a fatty material called myelin , which acts as insulation . the myelin sheath is n't continuous . there are these little bits of exposed neuron along the axon , which have the sweetest names in this whole episode . | how does the thickeness of the myelin sheath ( first mentioned ) affect the performance/function of the neuron ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | whew ! things are now back at the resting potential again . that , my friends , is how action potential allows neurons to communicate signals down a whole chain of neurons , from the outer reaches of the peripheral nervous system , all the way up the spinal cord , into the brain , and then back out again . | what is the resting potential in other cells ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | the other is if we were to disable the part of the nervous system that tells our body to stop touching a hot surface , could we just chill there ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | since neurons make up the nervous system , and multiple sclerosis is caused by certain cells attacking the axons of the neurons , is it possible that the nervous system can fall apart , and you could be paralyzed , since the axons are basically the transmitters ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | next , we have to talk about how it does it . the neurons that make up our nervous systems make it possible for our bodies to have their very own little electric systems . to understand how they work , you have to understand their anatomy . | does anyone know how a sponge reproduces , or how does it make one of itself ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | this generates a bunch of action-potentials that travel from the afferent neurons in my tongue , all the way to my brain , which is like , `` my goodness ! `` i think that 's pizza ! `` let 's have another bite . '' | how do we actually think the different things we think if those are just electrical signals or potential difference travelling down the neuron ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | notice , though , that now the sodium is on the inside of the cell , and the potassium is on the outside , and in the opposite places of where they started . the sodium-potassium pumps get back to work , burn up some atp to pump the sodium back out and the potassium back in . whew ! | wait i did n't get it.what is the sodium potassium pump ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | do blind animals have a more sensitive nervous system ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | like the blind sea slug pleurobranchaea maculata , does it have a more sensitive nervous system ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | it sends a message directly back to the muscle , saying , `` get your hand off the friggin ' stove ! '' ( bleeping noise ) young man : this bit of fancy nerve work lets the spinal cord make decisions , rather than the brain , and it 's called the reflex loop . so , the other branch of the peripheral nervous system , th... | if brain is damaged will reflex arc work ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the whole set-up here - your brain , your nerves , your spinal cord - everything is made up of specialized cells that you do n't find anywhere else in the body . most of those are neurons . you 've seen them before . | i thought that glia is far more numerous than neurons , so should n't nervous tissue be for the most part glia and not neurons , or is glia a subset for neurons ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . | what are the others connected to ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | by this time , so many sodium ions have gotten inside the first neuron that the difference between the outside and the inside is actually reversed . the inside is positive , and the outside is negative . it seems like neurons hate that more than pretty much anything else , so it fixes itself . | do all cells in the body want to be negative inside and positive outside , or just the neurons ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | these are called dendrites , and they receive information from other neurons . neurons also have a single axon , the trunk of the tree , which is branched at the end and sends signals to other neurons . the axon is also covered in a fatty material called myelin , which acts as insulation . | do single celled organisms have behaviour ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | of course , if it ended there , it would be way too simple , and no good bureaucracy has just two departments . so , the peripheral nervous system is actually made up of two different systems , with two very different jobs , the somatic nervous system and the autonomic nervous system . the somatic system controls all t... | so is n't the breathing function somewhere in the middle of the somatic and autonomic nervous system ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . | is there any scientific term for such a bodily function ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | but , we 're not done yet here . we need to go deeper . the autonomic nervous system has two divisions of its own , the sympathetic and the parasympathetic . | why do we need a sodium potassium pump and why does the inside of the neuron need a negative charge ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you probably heard this talked about as the fight-or-flight response - in other words , stress . but , stress is n't all bad . it 's what saves our lives when we 're being chased by saber-tooth tigers , right ? | why do n't sea sponges have nerves ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . by this time , so many sodium ions have gotten inside the first neuron that the difference between the outside and the inside is actually reversed . the inside is positive , and the out... | what is difference between sensation and perception ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | that 's your saltatory condution at work . when a wave reaches the end of the neuron , it triggers a release of neurotransmitters from the neuron through exocytosis . those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . | in each category , is each neuron different from eachother ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | why ca n't plants have a nervous system ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the whole set-up here - your brain , your nerves , your spinal cord - everything is made up of specialized cells that you do n't find anywhere else in the body . most of those are neurons . you 've seen them before . | how exactly is it that our neurons themselves `` think '' ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | notice , though , that now the sodium is on the inside of the cell , and the potassium is on the outside , and in the opposite places of where they started . the sodium-potassium pumps get back to work , burn up some atp to pump the sodium back out and the potassium back in . whew ! | so , say if a person is more intelligent than another , then his/her sodium potassium pumps works faster than others right ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | to the central nervous system , but that information does n't even ever get to the brain . the spinal cord actually makes that decision before it gets to the brain . it sends a message directly back to the muscle , saying , `` get your hand off the friggin ' stove ! '' | what allows the spinal cord to make decisions like the brain can process stuff but what does the spinal cord have to make a decision ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the axon is also covered in a fatty material called myelin , which acts as insulation . the myelin sheath is n't continuous . there are these little bits of exposed neuron along the axon , which have the sweetest names in this whole episode . | what is the difference between a schwann cell and a myelin sheath ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | that 's your saltatory condution at work . when a wave reaches the end of the neuron , it triggers a release of neurotransmitters from the neuron through exocytosis . those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . | how fast can a neuron send signals ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the axon is also covered in a fatty material called myelin , which acts as insulation . the myelin sheath is n't continuous . there are these little bits of exposed neuron along the axon , which have the sweetest names in this whole episode . | how does the thickeness of the myelin sheath ( first mentioned ) affect the performance/function of the neuron ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | what would happen to the nervous system during multiple sclerosis , which is a disorder where the immune system destroys the myelin of the nervous system ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the whole set-up here - your brain , your nerves , your spinal cord - everything is made up of specialized cells that you do n't find anywhere else in the body . most of those are neurons . you 've seen them before . | how do neurons create an electrical charge ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | what effects do meditation have on the parasympathetic nervous system ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | that 's your saltatory condution at work . when a wave reaches the end of the neuron , it triggers a release of neurotransmitters from the neuron through exocytosis . those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . | what happens when a neuron gets damaged ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | that 's your saltatory condution at work . when a wave reaches the end of the neuron , it triggers a release of neurotransmitters from the neuron through exocytosis . those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . | and also , can a neuron completely destroyed ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you might also remember that this build-up of voltage is handled in part by a sexy little protein called the sodium-potassium pump . basically , the pump creates a voltage differential , like charging a battery , by moving three positively-charged sodium ions out for every two potassium ions it lets in , creating a net... | since the sodium ions rush inside only because of voltage differential , why do n't the sodium ions stop that when the insides and outsides are equal ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | finally , the place where an axon 's branches come in contact with the next cell dendrite is called a synapse . that 's where neurotransmitters pass information from one neuron to the next . now , think back to , or just go watch the episode that we did on cell membranes , where we talked about how materials travel dow... | can you make a flowchart to show the events that occur as a nerve impulse travels from one neuron to the next ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the positive potassium ions rush down both the concentration and the electro-chemical gradients , to get the heck out of the cell . that brings the charge inside the cell back down to negative on the inside , and positive on the outside . notice , though , that now the sodium is on the inside of the cell , and the pota... | how is the inside of the cell negatively charged ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | that 's your saltatory condution at work . when a wave reaches the end of the neuron , it triggers a release of neurotransmitters from the neuron through exocytosis . those neurotransmitters , then , flow across the synapse to the next neuron , where they trigger another action potential over there . | if a neuron is a cell , where are the organelles ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | this node-hopping , by the way , has a name . it 's called saltatory condution - conduction because it 's electrical conduction , and saltatory because saltatory means leaping . finally , the place where an axon 's branches come in contact with the next cell dendrite is called a synapse . | if axons can be 4.5 meters in length in a giraffe are there cellular adaptations that enhance the speed of impulse conduction ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | the whole set-up here - your brain , your nerves , your spinal cord - everything is made up of specialized cells that you do n't find anywhere else in the body . most of those are neurons . you 've seen them before . | would it be possible for humans able to evolve to have multiple axons on their neurons ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | it seems like neurons hate that more than pretty much anything else , so it fixes itself . the sodium channels close and the potassium channels open up . the positive potassium ions rush down both the concentration and the electro-chemical gradients , to get the heck out of the cell . | what makes the ion channels to open ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you would n't think that it 's terribly complicated to know that pizza tastes good , and to tell someone to eat more pizza , but it turns out that our brains and our nervous systems are crazy complicated . your nervous system , basically , has a big ol ' bureaucracy of neurons and it 's divided into two main department... | why is the nervous system represented by `` pns '' ? |
young man : i 'm gon na be totally honest with you . i do n't really spend a lot of time thinking about my bodily functions for the most part - maybe sometimes . but in the next few episodes , i 'm going to be talking about all of the organ systems that make our lives possible , even occasionally pleasant . to start it... | you probably heard this talked about as the fight-or-flight response - in other words , stress . but , stress is n't all bad . it 's what saves our lives when we 're being chased by saber-tooth tigers , right ? | is n't the adrenaline made in the adrenal medulla ? |
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