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What is a thin layer of bacteria that sticks to a surface?
[ "a monofilm", "a choanocyte", "a biolfilm", "a spicule" ]
C
A biofilm is a thin layer of bacteria that sticks to a surface. Cells in a biofilm are all alike, but they may play different roles, such as taking in nutrients or making the “glue” that sticks the biofilm to the surface. The sticky plaque that forms on teeth is a biofilm of bacterial cells.
SCiQ_train
The variation in a sample can be represented by what quantity, which means the total spread of values?
[ "range", "variety", "median", "mode" ]
A
The variation in a sample can be represented by the range, or the total spread of values.
SCiQ_train
A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?
[ "2.82", "2.88", "2.87", "2.84" ]
B
M = 6 S = 1.2 DS = 6 + 1.2 = 7.2 US = 6 - 1.2 = 4.8 x/7.2 + x/4.8 = 1 x = 2.88 Answer:B
AquaRat_train
If a bank account has $1000 with an interest rate of 5% compounded annually, how much money will the account have after 10 years?
[ "1834", "1723", "2012", "1629" ]
D
1000*1.05^10=1000*1.629=1629 The answer is A.
AquaRat_train
The World Health Organization recently reported that the number of cases of tuberculosis(TB) has been _ since 2006 . Also, fewer people are dying from TB. But a study by researchers at the University of California, San Francisco, says smoking could threaten this progress. Nearly twenty percent of all people use tobacco...
[ "Scientists try to find the causes of TB deaths.", "Study shows smoking is harmful to our health.", "Study links smoking to millions of TB deaths.", "Scientists pay more attention to TB deaths than before." ]
C
MMLU_train
One Saturday afternoon about the second week of May, Maggie and her mom Jan went to the dentist. Maggie was seven years old and she was scared of the dentist, but her mom promised to fix her favorite chicken dish for dinner if Maggie was a good girl. "At least it's not the doctor's!" she said. They got to the dentist o...
[ "toothbrush, toothpaste, candy, and sticker", "toothbrush and toys", "toothbrush, toothpaste, and candy", "toothbrush and toothpaste" ]
A
MMLU_train
When a dog loses a leg, the animal eventually figures out the best way to get around on three legs. In a short time, the dog learns to deal with its physical disability. Now, scientists have developed robots that behave in much the same way. We can find robots everywhere. Robots build cars, play chess and can clean you...
[ "provide examples of how animals deal with unexpected injury", "show how scientists get inspiration from dogs to develop technology", "introduce the topic in a more attractive way", "suggest that scientists shouldn't ignore the similarity between dogs and robots." ]
C
MMLU_train
The zoospores develop into haploid, multicellular male and female gametophytes, which produce?
[ "spores", "toxins", "gametes", "microorganisms" ]
C
SCiQ_train
In a market there are men and horses. In all, there are 22 heads and 66 feet. How many men and how many horses are in the market?
[ "11 men and 11 horses.", "6 men and 14 horses.", "7 men and 14 horses.", "5 men and 14 horses." ]
A
11 men and 11 horses. Let M = men and H = horses. We can come up with 2 equations. M + H = 22 2M + 4H= 66 Solving the 2 equations will give 11 men and 11 horses. Answer E
AquaRat_train
When 2 + 3 = 65, 3 + 4 = 125, 4 + 5 = 205, then 5 + 6 = ?
[ "245", "305", "315", "285" ]
B
2 + 3 => 2 × 3 = 6 => 6 × 10 + 5 = 65 3 + 4 => 3 × 4 = 12 => 12 × 10 + 5 = 125 4 + 5 => 4 × 5 = 20 => 20 × 10 + 5 = 205 Then 5 + 6 => 5 × 6 = 30 => 30 × 10 + 5 = 305 Answer : B
AquaRat_train
A man goes from A to B at a speed of 14 kmph and comes back to A at a speed of 10 kmph. Find his average speed for the entire journey?
[ "11.9 kmph", "11.6 kmph", "12.6 kmph", "12.8 kmph" ]
B
Distance from A and B be 'd' Average Speed = total distance/total time Average Speed = (2d)/[(d/14) + (d/10] = (2d)/[12d/70) => 11.6 kmph. Answer:A
AquaRat_train
What is the basic structure that holds plants upright, allowing plants to get the sunlight and air they need?
[ "stem", "root", "stamen", "twig" ]
A
Stems are organs that hold plants upright. They allow plants to get the sunlight and air they need. Stems also bear leaves, flowers, cones, and smaller stems. These structures grow at points called nodes. The stem between nodes is called an internode. (See Figure below . ).
SCiQ_train
Find the value of x in (8x-6)=10.
[ "3", "4", "5", "2" ]
D
(8x-6)=10 Adding both sides with 6 gives 8x=16 Dividing both sides with 8 gives x=2 Answer: B
AquaRat_train
Cancers derived from epithelial cells are referred to as what?
[ "caricatures", "adenomas", "nodules", "carcinomas" ]
D
Tissues and Cancer Cancer is a generic term for many diseases in which cells escape regulatory signals. Uncontrolled growth, invasion into adjacent tissues, and colonization of other organs, if not treated early enough, are its hallmarks. Health suffers when tumors “rob” blood supply from the “normal” organs. A mutatio...
SCiQ_train
Wildlife faces threats from habitat destruction, pollution, and other human actions. Although protecting wildlife may seem too hard at times, even small actions in your own neighborhood can help protect many different animals. Here are some tips on how to protect wildlife through small actions. 1.Create wildlife friend...
[ "Environment", "Teaching", "Business", "Geography" ]
A
MMLU_train
What happens to the temperature of matter as light is absorbed?
[ "it stays the same", "it drops", "it triples", "it increases" ]
D
http://www. chem. ufl. edu/~itl/2045/lectures/lec_d. html.
SCiQ_train
What substance is removed from waste as it passes through the large intestine?
[ "water", "blood", "nutrients", "air" ]
A
Food waste enters the large intestine from the small intestine in a liquid state. As the waste moves through the large intestine, excess water is absorbed from it. The remaining solid waste is called feces. After a certain amount of feces have collected, a sphincter relaxes to let the feces pass out of the body through...
SCiQ_train
Impenetrable what underlies the soil of the forest?
[ "structure", "groundwater", "bedrock", "topsoil" ]
C
SCiQ_train
One Sunday morning Mr Green and his child , Bill ,are in a big shop . Mr Green wants to buy a new blouse for Mrs Green . Bill likes oranges , so his father buys two kilos of oranges for him , too . Bill wants to buy some picture--books and colour pencils , too . There are many people in the shop . They are men and wome...
[ "Bill's mother", "Bill", "his friend", "other people" ]
A
MMLU_train
What device detects and measuresee earthquake waves?
[ "sphygmomanometer", "polygraph", "seismograph", "stenograph" ]
C
Although the idea that Earth is a magnet is centuries old, the discovery of why Earth is a magnet is a relatively new. In the early 1900s, scientists started using seismographic data to learn about Earth’s inner structure. A seismograph detects and measure earthquake waves. Evidence from earthquakes showed that Earth h...
SCiQ_train
Interstitial carbides are produced by the reaction of most transition metals at high temperatures with what element?
[ "carbon", "hydrogen", "nitrogen", "oxygen" ]
A
temperatures with electropositive metals such as those of groups 1 and 2 and aluminum produces ionic carbides, which contain discrete metal cations and carbon anions. The identity of the anions depends on the size of the second element. For example, smaller elements such as beryllium and aluminum give methides such as ...
SCiQ_train
What lets different species of anole lizards live in the same area without competing?
[ "variation", "specialization", "cooperation", "concentration" ]
B
Specialization in Anole Lizards. Specialization lets different species of anole lizards live in the same area without competing.
SCiQ_train
A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?
[ "35 1/2", "36 1/2", "38 1/2", "37 1/2" ]
D
Explanation: Work done by A in 20 days = 80/100 = 8/10 = 4/5 Work done by A in 1 day = (4/5) / 20 = 4/100 = 1/25 --- (1) Work done by A and B in 3 days = 20/100 = 1/5 (Because remaining 20% is done in 3 days by A and B) Work done by A and B in 1 day = 1/15 ---(2) Work done by B in 1 day = 1/15 – 1/25 = 2/75 => B can ...
AquaRat_train
The price of commodity X increases by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y?
[ "2011", "2014", "2010", "2013" ]
A
Suppose commodity X will cost 40 paise more than Y after z years. Then, (4.20 + 0.40z) - (6.30 + 0.15z) = 0.40 0.25z = 0.40 + 2.10 z = 2.50/0.25 = 250/25 = 10. Therefore, X will cost 40 paise more than Y 10 years after 2001 i.e., 2011. Answer is D.
AquaRat_train
Visiting the forest zoo Come and see the Indian elephants and the new tigers from Northeast of China. The beautiful birds from England are ready to sing songs for you, and the monkeys from Mount Emei will be happy to talk to you. The lovely dogs from Australia want to laugh at you. Sichuan pandas will play balls for yo...
[ "fat", "short", "strong", "tall" ]
D
MMLU_train
Amy's sells kale at x dollar per pound for the first 25 pounds and .8x for every subsequent pound. Lucia's price is x per pound for the first 14 pounds and .9x for subsequent pounds. What is the minimum number of pounds over 15 for which Amy's becomes an equal or better deal?
[ "36", "27", "28", "24" ]
A
For Amy's deal to be better, the cost has to be less or equal to Lucia's Assuming 'n' is the number of pounds of kale, the equation is 25x + (n-25) (0.8x) <= 14x + (n-14)(0.9x) Resolve it: ==> 25x + 0.8nx - 20x <= 14x + 0.9nx - 12.6x ==> 3.6x <=0.1nx ==> 36x < =nx ==> x (n-36) > = 0 as x cannot be 0, ==> n - 36 >=0 ==>...
AquaRat_train
Humans create different breeds of organisms using what kind of selection?
[ "biased selection", "speciation", "artificial selection", "natural selection" ]
C
Artificial Selection: Humans used artificial selection to create these different breeds. Both dog breeds are descended from the same wolves, and their genes are almost identical.
SCiQ_train
If you want to study a flower closely, use
[ "an enlarger", "a fork", "a mirror", "a telescope" ]
A
MMLU_train
Would you find cells that contain a cell wall, a large central vacuole, and plastids in plant or animal cells?
[ "tube cells", "plant cells", "heart cells", "animal cells" ]
B
Most organelles are common to both animal and plant cells. However, plant cells also have features that animal cells do not have: a cell wall, a large central vacuole, and plastids such as chloroplasts.
SCiQ_train
Deserts are generally dry ecosystems having very little what?
[ "heat", "snowfall", "mountains", "rainfall" ]
D
frequent algal blooms d. little or no vegetation 12. Which of the following is an example of a weather event? a. The hurricane season lasts from June 1 through November 30. The amount of atmospheric CO2 has steadily increased during the last century. A windstorm blew down trees in the Boundary Waters Canoe Area in Minn...
SCiQ_train
What are compounds with the same number of carbon and hydrogen atoms called?
[ "isomers", "alcohols", "hydrocarbons", "monomers" ]
A
Even compounds with the same number of carbon and hydrogen atoms can have different shapes. These compounds are called isomers . Look at the examples in Figure below . The figure shows the structural formulas of butane and its isomer iso -butane. Both molecules have four carbon atoms and ten hydrogen atoms (C 4 H 10 ),...
SCiQ_train
A shopkeeper has 280 kg of apples. He sells 45% of these at 20% profit and remaining 60% at 30% profit. Find his % profit on total.
[ "25%", "28%", "27%", "24%" ]
C
If the total quantity was 100 Then 45X 20% + 60 X30%= 27 This profit will remain same for any total quantity unless the % of products remains the same. Hence 'C' is the answer
AquaRat_train
What are algae that live in colonies of hundreds of cells called?
[ "volvox", "rhodophyta", "euglenids", "chlorophyta" ]
A
Some single-celled organisms, such as algae, live in colonies. A colony is an organized structure composed of many cells, like the Volvox sphere in Figure below . Volvox are algae that live in colonies of hundreds of cells. All of the cells in the colony live and work cooperatively. For example, they can coordinate the...
SCiQ_train
This is the SCIENCE IN THE NEWS, I'm Barbara Klein. Animal experts say one of the world's most beautiful and rare kinds of big cat is close to disappearing from the wild. A study earlier this year found that about thirty Amur leopards still live free. The cats are also called Far Eastern leopards. Recently, their numbe...
[ "are living on plants", "are living in the zoo", "are well protected by people", "are endangered" ]
D
MMLU_train
If a car had traveled 40 kmh faster than it actually did, the trip would have lasted 30 minutes less. If the car went exactly 120 km, at what speed did it travel?
[ "80 kmh", "90 kmh", "50 kmh", "60 kmh" ]
A
Time = Distance/Speed Difference in time = 1/2 hrs 120/x - 120/(x + 40) = 1/2 Substitute the value of x from the options. --> x = 80 --> 120/80 - 120/120 = 3/2 - 1 = 1/2 Answer: D
AquaRat_train
What is it called when the chance that a certain event will occur?
[ "difficulty", "mutation", "probability", "procession" ]
C
Probability is the chance that a certain event will occur. For example, the probability of a head turning up on any given coin toss is 50 percent.
SCiQ_train
A high school has 400 students 1/2 attend the airthmetic club, 5/8 attend the physics club and 3/4 attend the chemistry club. 3/8 attend all 3 clubs. If every student attends at least one club how many students attend exactly 2 clubs.
[ "60", "80", "70", "50" ]
D
A-Club has 200 members (1/2 of 400) B-Club has 250 members (5/8 of 400) C-Club has 300 members (3/4 of 400) We can create an equation to solve this: 200+250+300 = n + x + 2y where n is the number of students, x is the number of students in two clubs, and y is the number of students in three clubs. The question provides...
AquaRat_train
A man made a nice talking machine .It could weigh people's weight .The man wanted to try the machine before he could make a lot of machines. He put the machine into the waiting room of a station .There were always lots of people in and out . The first one who used the machine was an Indian woman. She stood on the machi...
[ "should eat more", "should eat less", "had to eat more fruit", "kept herself healthy" ]
D
MMLU_train
Boom boom!( I'm here, come to me!) Krak krak!( Watch out, aleopard !) Hok hok hok!( Hey, crowned eagle!) Very good -- you've already mastered half the basic vocabulary of the Campbell's monkey, which lives in the forests of the Tai National Park in Ivory Coast. The adult males have six types of call, each with a speci...
[ "Krak", "Boom", "Boom boom krak-oo krak-oo krak-oo", "Krak-oo" ]
D
MMLU_train
What is the mass of one mole of any given substance?
[ "atomic mass", "solute mass", "molar mass", "protons mass" ]
C
Molar mass is the mass of one mole of any given substance.
SCiQ_train
Water boils at 212°F or 100°C and melts at 32°F or 0°C . If the temperature of the particular day is 35°C , it is equal to
[ "120", "95", "100", "40" ]
B
Let F and C denotes the temparature in Fahrenheit anid Celcsius respectively. Then, (F - 32) /(212 - 32) = (C - 0)/(100 - 0), if c = 35, then F = 95. C
AquaRat_train
The average weight of 10 persons increases by 3.2 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
[ "76 kg", "97 kg", "None", "85 kg" ]
B
Solution Total weight increased = (10 x 3.2)kg = 32 kg. Weight of new person = (65 + 32)kg = 97 kg. Answer D
AquaRat_train
What relatively new addition to and highest level of the system of taxonomic classification includes just three divisions, the eukarya, the archaea, and the bacteria?
[ "branch", "domain", "element", "content" ]
B
The highest level, domain, is a relatively new addition to the system since the 1990s. Scientists now recognize three domains of life, the Eukarya, the Archaea, and the Bacteria. The domain Eukarya contains organisms that have cells with nuclei. It includes the kingdoms of fungi, plants, animals, and several kingdoms o...
SCiQ_train
During your stay outside Hong Kong, you may have been exposed to certain infectious diseases without your knowledge. In case you develop any symptom such as fever, chills, skin troubles or vomiting within 14 days of your arrival in Hong Kong, you should consult a doctor or attend an accident & emergency department/ge...
[ "when you arrive in Hong Kong", "before you understand them", "within two weeks of your arrival in Hong Kong", "before arriving in Hong Kong" ]
D
MMLU_train
The various sensory organs are part of what organ system?
[ "respiratory", "nervous", "digestive", "lymphatic" ]
B
Sensory organs such as the eyes and ears are part of the nervous system. The nervous system controls all other body systems. However, the nervous system doesn’t work alone. The endocrine system also helps to regulate the body and its functions.
SCiQ_train
Which blood leaves the placenta through veins leading back to the fetus?
[ "immunity", "pelvic", "fetal", "molecular" ]
C
SCiQ_train
What is a group of similar ecosystems with the same general abiotic factors and primary producers?
[ "biome", "family", "taxon", "ecoregion" ]
A
The two photos in Figure above represent two different biomes. A biome is a group of similar ecosystems with the same general abiotic factors and primary producers. Producers are organisms that produce food for themselves and other organisms. Biomes may be terrestrial or aquatic.
SCiQ_train
The average age of an adult class is 40years. 15new students with an avg age of 32years join the class. Therefore decreasing the average by 4year. Find what was theoriginal strength of class?
[ "12", "8", "15", "17" ]
C
Let original strength = y Then , 40y + 15 x 32 = ( y + 15) x 36 ⇒ 40y + 480 = 36y + 540 ⇒ 4y = 60 ∴ y = 15 C
AquaRat_train
Malaria is a common disease in many countries. What is the cause of this disease?
[ "a virus", "a bacterium", "a fungus", "a parasite" ]
D
MMLU_train
A scientist studies the remains of two extinct animals to learn more about how they lived. She determines that one animal was a carnivore and the other was an herbivore. Which of the following did the scientist most likely compare to make this conclusion?
[ "the number of bones in the animals", "the size of the animals", "the body covering of the animals", "the skull of the animals" ]
D
MMLU_train
What layer of skin is located right beneath the epidermis?
[ "humus", "scars", "cusps", "dermis" ]
D
The dermis is the lower layer of the skin, located directly beneath the epidermis (see Figure below ). It is made of tough connective tissue and attached to the epidermis by collagen fibers. The dermis contains blood vessels and nerve endings. Because of the nerve endings, skin can feel touch, pressure, heat, cold, and...
SCiQ_train
A certain family has 3 sons: Richard is 6 years older than David, and David is 8 years older than Scott. If in 8 years, Richard will be twice as old as Scott, then how old was David 3 years ago?
[ "10", "12", "11", "14" ]
C
Let's say Age of Richard is "R" Age of David is "D" Age of Scott is "S" Now Richard is 6 years older than David, i.e. R = D +6 David is 8 years older than Scott i.e. D = S +8 If in 8 years, Richard will be twice as old as Scott i.e. R+8 = 2x(S+8) i.e. R+8 = 2S + 16 i.e. R = 2S+8 But R = D+6 = (S+8)+6 = S+14 therefore, ...
AquaRat_train
A man swims downstream 40 km and upstream 30 km taking 5 hours each time, what is the speed of the man in still water?
[ "7", "5", "8", "36" ]
A
40 --- 5 DS = 8 ? ---- 1 30 ---- 5 US = 6 ? ---- 1 M = ? M = (8 + 6)/2 = 7 Answer: E
AquaRat_train
Many people watched the lift-off of the space shuttle Columbia on March 21, 1982. But none watched more closely than eighteen-year-old Ted, as Ted's insects were on board the shuttle. The Shuttle Student Involvement Program invited students to make a science experiment. The experiment would be done by astronauts on the...
[ "The flies.", "The honeybees.", "The insects.", "The moths." ]
B
MMLU_train
Imagine having an idea, drawing it on paper, bringing it to a store and seeing it turned into a physical object.This is now possible with the help of 3D printers.Such machines were once used just by universities and big companies.But now, stores with 3D printing services are appearing around the United States. Bryan Ja...
[ "sell 3D printers and different kinds of tools", "produce all types of printing machines", "offer 3D printing classes and services", "design different types of 3D printers" ]
C
MMLU_train
Do you want to be in good health? Try to do the following things! You can become strong. Drink eight cups of water every day. Water helps your body in many ways. If you feel......,have a cup of water. Don't forget to eat your breakfast. Breakfast gives you everything your body needs for the morning. So do not forget yo...
[ "Five", "Six", "Seven", "Eight" ]
C
MMLU_train
An automobile financier claims to be lending money at simple interest, but he includesthe interest every six months for calculating the principal. If he is charging an interest of10%, the effective rate of interest becomes:
[ "Cannot be determined", "10.25%", "10%", "10.5%" ]
B
Explanation: Let the sum be Rs. 100. Then, S.I. for first 6 months = Rs.[ (100 x 10 x 1)/(100 x 2) ]= Rs.5 S.I. for last 6 months =Rs.[(102 x 10 x 1)/(100 x 2) ] = Rs.5.25 So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25 Effective rate = (110.25 - 100) = 10.25% Answer: B
AquaRat_train
Red-clay bricks have a density of approximately 2000 kg/m^3. Air has a density of 1 kg/m^3. Which of the following has the lowest mass?
[ "2 m^3 of bricks", "4 m^3 of bricks", "6000 m^3 of air", "10,000 m^3 of air" ]
A
MMLU_train
Darwin coined what term to refer to an organism’s relative ability to survive and produce fertile offspring?
[ "fitness", "metabolism", "strength", "momentum" ]
A
Darwin coined the term fitness to refer to an organism’s relative ability to survive and produce fertile offspring. Nature selects the variations that are most useful. Therefore, he called this type of selection natural selection.
SCiQ_train
The ratio of the number of ladies to gents at a party was 1:2 but when 2 ladies and 2 gents left, the ratio became 1:3. How many people were at the party originally?
[ "14", "6", "12", "8" ]
C
x, 2x (x-2):(2x-2) = 1:3 3x-6 = 2x-2 x = 4 x+2x = 3x => 3*4 = 12 ANSWER A
AquaRat_train
What is the difference between the place value of 2 in the numeral 7229?
[ "180", "190", "200", "160" ]
A
Option 'C' 200 - 20 = 180
AquaRat_train
What do many mollusks secrete for their protection?
[ "calcareous shell", "sedimentation shell", "microscopic shell", "mucus" ]
A
15.4 Mollusks and Annelids The phylum Mollusca is a large, mainly marine group of invertebrates. Mollusks show a variety of morphologies. Many mollusks secrete a calcareous shell for protection, but in other species, the shell is reduced or absent. Mollusks are protostomes. The dorsal epidermis in mollusks is modified ...
SCiQ_train
How does repeating an experiment improve the likelihood of obtaining accurate results?
[ "Data can be compared.", "Time can be decreased.", "Equipment can be added.", "Procedures can be changed." ]
A
MMLU_train
When a number is divided by 13, the remainder is 11. When the same number is divided by 17, then remainder is 9. What is the number ?
[ "349", "500", "339", "600" ]
A
x = 13p + 11 and x = 17q + 9 13p + 11 = 17q + 9 17q - 13p = 2 q = 2 + 13p 17 The least value of p for which q = 2 + 13p => p = 26 17 x = (13 x 26 + 11) = (338 + 11) = 349 ANSWER A
AquaRat_train
Month Average Price per Dozen April $1.2 May $1.20 June $3.00 The table above shows the average (arithmetic mean) price per dozen of the large grade A eggs sold in a certain store during three successive months. If 2/3 as many dozen were sold in April as in May, and twice as many were sold in June as in April, what was...
[ "2.2", "2.4", "2", "1.9" ]
C
Say x dozen eggs were sold in May. Then 2x/3 dozen eggs were sold in April and 2*2x/3=4x/3 dozen eggs were sold in May. Total x+2x/3+4x/3=3x dozen eggs were sold in three months. Total sales: 2x/3*1.2+x*1.2+4x/3*3.00=$6.00x. The average price per dozen 6.00x/3x=$ 2.00 C
AquaRat_train
Our only star provides us with energy that is
[ "temporary", "inferior", "expensive", "reusable" ]
D
MMLU_train
Arthropods change into the adult form in a process called what?
[ "metamorphosis", "budding", "parthenogenesis", "spontaneous mutation" ]
A
Arthropods have a life cycle with sexual reproduction. Most species go through larval stages after hatching. The larvae are very different from the adults. They change into the adult form in a process called metamorphosis . This may take place within a cocoon. A familiar example of metamorphosis is the transformation o...
SCiQ_train
A is a set containing 8 different numbers. B is a set containing 7 different numbers, all of which are members of A . Which of the following statements CANNOT be true?
[ "The mean of A is greater than the mean of B .", "The range of A is less than the range of B.", "The range of A is equal to the range of B.", "The mean of A is less than the mean of B." ]
B
The range of a set is the difference between the largest and smallest elements of a set. So, the answer is straight A: the range of a subset cannot be more than the range of a whole set: how can the difference between the largest and smallest elements of a subset bemorethan the difference between the largest and smalle...
AquaRat_train
If A lends Rs.2000 to B at 15% per annum and B lends the same sum to C at 17% per annum then the gain of B in a period of 4 years is?
[ "160", "155", "157.12", "162" ]
A
(2000*2*4)/100 => 160 Answer: D
AquaRat_train
The famous director of a big and expensive movie planned to film a beautiful sunset over the ocean, so that the audiences could see his hero and heroine in front of it at the end of the film as they said goodbye to each other for ever. He sent his camera crew out one evening to film the sunset for him. The next mornin...
[ "it went well with the separation of the hero and heroine", "when they arrived at the beach it was already in the evening", "it was more moving than a sunrise", "the ocean looked more beautiful at sunset" ]
A
MMLU_train
The law of conservation of matter, which says that matter cannot be created or this?
[ "stopped", "abandoned", "destroyed", "damaged" ]
C
the law of conservation of matter, which says that matter cannot be created or destroyed. This means we must have the same number of protons and neutrons on both sides of the nuclear equation. If our uranium nucleus loses 2 protons, there are 90 protons remaining, identifying the element as thorium. Moreover, if we los...
SCiQ_train
What compound has positive and negative ions?
[ "covalent", "ionic", "protein", "hydrocarbon" ]
B
Ionic compounds have positive ions and negative ions.
SCiQ_train
In humans, what is the first organ to form and become functional?
[ "heart", "liver", "pancreas", "brain" ]
A
19.5 Development of the Heart The heart is the first organ to form and become functional, emphasizing the importance of transport of material to and from the developing infant. It originates about day 18 or 19 from the mesoderm and begins beating and pumping blood about day 21 or 22. It forms from the cardiogenic regio...
SCiQ_train
How many valence electrons do neutral phosphorus atoms have?
[ "three", "five", "nine", "four" ]
B
The highest-numbered shell is the third shell, which has 2 electrons in the 3s subshell and 3 electrons in the 3p subshell. That gives a total of 5 electrons, so neutral phosphorus atoms have 5 valence electrons. The 10 remaining electrons, from the first and second shells, are core electrons.
SCiQ_train
The average of seven numbers is 18. The average of first three numbers is 14 and the average of last three numbers is 19. What is the middle number?
[ "25", "34", "27", "32" ]
C
The total of seven numbers = 7X18 = 126 The total of first 3 and last 3 numbers is = 3 X 14+3 X 19 = 99 So, the middle number is (126 - 99 ) = 27 B
AquaRat_train
Coyotes notice that their territory begins to get more and more dry. This means that in order to properly hydrate, the coyotes will need to
[ "mitigate water", "moisturize their fur", "migrate for dryness", "migrate for fluid" ]
D
MMLU_train
Two brother X and Y appeared for an exam. The probability of selection of X is 1/5 and that of B is 2/3. Find the probability that both of them are selected.
[ "2/29", "2/20", "2/15", "2/18" ]
C
Explanation: Let A be the event that X is selected and B is the event that Y is selected. P(A) = 1/5, P(B) = 2/3. Let C be the event that both are selected. P(C) = P(A) × P(B) as A and B are independent events: = (1/5) × (2/3) = 2/15 Answer: E) 2/15
AquaRat_train
The energy for an ecosystem can come from sunlight or _________?
[ "radiation compounds", "fossil fuels", "rain", "chemical compounds" ]
D
All ecosystems need a constant input of energy in the form of sunlight or chemical compounds. Living things can be classified based on how they obtain energy as producers, consumers, or decomposers.
SCiQ_train
What is the mechanism that accounts for the drifting of continents?
[ "seafloor spreading", "earth spreading", "volcanic spreading", "ridges spreading" ]
A
Seafloor spreading is the mechanism for the drifting continents.
SCiQ_train
What are the 3 types of volcanoes?
[ "composite , atop , cinder cones", "crude , shield , cinder cones", "composite, shield, cinder cones", "composite, seismic, fault" ]
C
A volcano is a vent through which molten rock and gas escape from a magma chamber. Volcanoes differ in many features, such as height, shape, and slope steepness. Some volcanoes are tall cones, and others are just cracks in the ground ( Figure below ). As you might expect, the shape of a volcano is related to the compos...
SCiQ_train
What part of the body does emphysema affect?
[ "brain", "lungs", "bones", "heart" ]
B
Emphysema is a lung disease in which walls of the alveoli break down so less gas can be exchanged in the lungs (see Figure below ). This causes shortness of breath. The damage to the alveoli is usually caused by smoking and is irreversible.
SCiQ_train
There is a library in John's school. It's new and big. It's behind the classroom building. It has three floors. On the first floor, there are two reading rooms. There are five big desks and thirty chairs in each reading room. John comes here and does his homework after class every day. On the second floor, there are a ...
[ "There are 5.", "There are 15.", "There are 30.", "There are 60." ]
D
MMLU_train
Which situation would most likely cause an object to travel in a circular motion?
[ "one force acting on the object in the opposite direction of the motion", "two forces acting on the object in the same direction as the motion", "one force acting on the object perpendicular to the direction of the motion", "two forces acting on the object in different directions to the motion" ]
C
MMLU_train
A candidate who gets 30% of the marks fails by 30 marks. But another candidate who gets 45% marks gets 15 marks more than necessary for passing. Find the number of marks for passing?
[ "371 Marks", "120 Marks", "100 Marks", "200 Marks" ]
B
30% ------------ 30 45% ------------ 15 ---------------------- 15% ------------- 45 30% -------------- ? 90 + 30 = 120 Marks Answer:E
AquaRat_train
That was one surprising finding when researchers put Stanford University students in a simulated self-driving car to study how they reacted when their robo-chauffer needed help. The experiment was one in a growing number that assesses how cars can safely hand control back to a person when their self-driving software is...
[ "remind the readers of risks in the self-driving car", "advertise and market the new self-driving car", "get more participants to experiment in the self-driving car", "introduce the advanced technology in the self-driving car" ]
A
MMLU_train
What do we call structures that have lost their use through evolution, which serve as important evidence of evolution?
[ "primordial", "extinct", "vestigial", "adaptative" ]
C
Vestigial structures, or structures that have lost their use through evolution, are important evidence of evolution.
SCiQ_train
The fujita scale measures the intensity of what weather event, based on wind speed and damage?
[ "wind gust", "blizzard", "sandstorm", "tornado" ]
D
The Fujita scale measures tornado intensity based on wind speed and damage.
SCiQ_train
Light for the City Edison and his assistants came to New York to set up an electric power system. They hoped it would provide enough electricity to light up a part of the great city. They bought several machines with them. These were called generators , which produced electricity power for lamps in Edison's building. S...
[ "set up the electric system", "produce several large generators", "dig the deep trenches", "lay fourteen miles of wire into the trench" ]
A
MMLU_train
In a group of ducks and cows, the total number of legs are 36 more than twice the no. of heads. Find the total no.of buffaloes.
[ "15", "18", "13", "12" ]
B
Let the number of buffaloes be x and the number of ducks be y => 4x + 2y = 2 (x + y) + 36 => 2x = 36 => x = 18 E
AquaRat_train
How many four-digit integers exist such that all their digits are odd?
[ "100", "625", "125", "80" ]
B
so last digit can be filled in 5 ways- 1,3,5,7,9 there are 5 possibilities. The answer is 5∗5*5*5=625 The correct answer is E
AquaRat_train
If you are sending a text, watching the TV or listening to the radio, you may want to stop and give this your full attention. Multi-tasking shrinks the brain, research suggests. A study found that men and women who frequently used several types of technology at the same time had less grey matter in a key part of the ...
[ "the link between multi-tasking and brain shrinkage needs further research", "people with less grey matter in the ACC are more attracted to multi-tasking", "multi-tasking has harmful impacts on our cognition and social-emotional well-being", "multi-tasking leads to a shortened attention span, depression, anxi...
A
MMLU_train
20 people going to one temple. (some time waste data) They want Rs. 20. For men-Rs.3, women-Rs.2, children-50 paisa. How much money spends for men, children and women?
[ "6,7,10", "3,7,10", "5,7,10", "7,7,10" ]
B
M=1 => 1*3= 3 W=5 => 5*2= 10 C=14 => 14*.5= 7 1+5+14= 20 & 3+10+7=20 ANSWER:A
AquaRat_train
When do weather balloons return to earth?
[ "when the air heats up", "when the air cools", "when the timer runs out", "when it bursts" ]
D
Weather stations contain many instruments for measuring weather conditions. The weather balloon ( Figure above ) will rise into the atmosphere until it bursts. As it rises, it will gather weather data and send it to the surface. Many weather satellites orbit Earth. They constantly collect and transmit weather data from...
SCiQ_train
As the flower size increases, what will it attract more of?
[ "monarchs", "grass", "carnivores", "toy butterfly" ]
A
MMLU_train
Ethers readily dissolve what type of molecules?
[ "proteins", "lipids", "polar", "non-polar" ]
D
Ethers are good solvents for other organic compounds because of their low reactivity. They readily dissolve non-polar molecules. Diethyl ether is perhaps the best known ether. It is widely used as a solvent and has been used as an inhalable anesthetic.
SCiQ_train
Spending two or three hours playing outdoors each day can reduce a child's chance of becoming short-sighted, a research shows. It challenges the belief that short-sightedness is caused by computer use, watching TV or reading in weak light. The Australian government researchers believe that sunlight is good for people...
[ "People will all become short-sighted after they begin to go to school.", "Playing outdoors for 2 or 3 hours every day can help protect your eyesight.", "Children in Australia are more likely to get short-sighted than those in Singapore.", "If you spend two or three hours playing outside each day, you won't g...
B
MMLU_train
What is water falling from the sky called?
[ "acid", "temperature", "snow", "precipitation" ]
D
SCiQ_train
The H.C.F. of two numbers is 20 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:
[ "345", "280", "322", "276" ]
B
Clearly, the numbers are (20 x 13) and (20 x 14). Larger number = (20 x 14) = 280. Answer: Option E
AquaRat_train
Fluid-filled thylakoids are the site of glucose production in the second stage of what process?
[ "glycolysis", "measurements", "birth", "photosynthesis" ]
D
The interior space that surrounds the thylakoids is filled with a fluid called stroma . This is where carbon dioxide is used to produce glucose, the second part of photosynthesis.
SCiQ_train
What are nutrients the body needs in relatively large amounts called?
[ "abundances", "adulterants", "macronutrients", "vitamins" ]
C
Nutrients the body needs in relatively large amounts are called macronutrients . They include carbohydrates, proteins, lipids, and water. All macronutrients except water can be used by the body for energy. (The energy in food is measured in a unit called a Calorie . ) The exact amount of each macronutrient that an indi...
SCiQ_train