prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
Because force and electric field are what, they have direction as well as their value?
A. vectors
B. mass
C. neurons
D. sensors
Answer: | A | sciq |
Acceleration is a vector, and thus has a both a magnitude and what else?
A. pressure
B. temperature
C. wavelength
D. direction
Answer: | D | sciq |
What is it called when individual organisms work together with one another?
A. cooperation
B. competition
C. dualism
D. continuation
Answer: | A | sciq |
How thick is the earth's continental crust, on average?
A. 35 kilometers
B. 25 kilometers
C. 60 kilometers
D. 15 kilometers
Answer: | A | sciq |
Which organ has a thick mucus lining that protects the underlying tissue from the action of the digestive juices?
A. stomach
B. spleen
C. liver
D. colon
Answer: | A | sciq |
What historical event taught people that soil could be lost by plowing and growing crops and encouraged new methods to prevent erosion?
A. the dust bowl
B. the land bowl
C. the debris bowl
D. the flow bowl
Answer: | A | sciq |
In what phase is the moon brightly illuminated?
A. blue moon
B. full moon
C. new moon
D. crescent
Answer: | B | sciq |
What do vectors possess that scalars do not?
A. direction and texture
B. magnitude and weight
C. magnitude and direction
D. height and polarity
Answer: | C | sciq |
What are the food making factories of plants?
A. fruits
B. roots
C. leaves
D. stems
Answer: | C | sciq |
What does a pollinator pick from its body and carry directly to another plant of the same species?
A. egg
B. pollen
C. pathogen
D. spore
Answer: | B | sciq |
Melting ice cubes and freezing water are examples of change of what?
A. role
B. role
C. volume
D. state
Answer: | D | sciq |
What is the term for heterotrophs that eat only or mainly animals?
A. parasites
B. omnivores
C. carnivores
D. predators
Answer: | C | sciq |
How much work is done when a force is applied in a different direction than the direction of movement?
A. minimum
B. half
C. full
D. none
Answer: | D | sciq |
The mercury or alcohol in a common glass what changes its volume as the temperature changes?
A. compass
B. thermometer
C. barometer
D. calculator
Answer: | B | sciq |
What are commonly used to control insect pests, but can have harmful effects on the environment?
A. insecticides
B. fertilizers
C. toxins
D. Herbicides
Answer: | A | sciq |
The components of what keep their own identity when they combine and can usually be easily separated?
A. compound
B. mixture
C. alloy
D. solution
Answer: | B | sciq |
What type of light can mosquitoes see?
A. spicule
B. infared
C. trichina
D. neon
Answer: | B | sciq |
What subject is a way of learning about the natural world that is based on evidence and logic?
A. evolution
B. science
C. geology
D. geography
Answer: | B | sciq |
Chloroplasts are present only in cells of eukaryotes capable of what process?
A. photosynthesis
B. sexual reproduction
C. digestion
D. hydrolysis
Answer: | A | sciq |
Shielding should be used when receiving x-rays to limit exposure to what potentially harmful form of energy?
A. radiation
B. pollution
C. convection
D. evaporation
Answer: | A | sciq |
What is the way animals act either alone or with other animals called?
A. animal lifestyle
B. animal behavior
C. animal way
D. animal point
Answer: | B | sciq |
What three primary colors of light can be distinguished by the human eye?
A. red, green, blue
B. blue, red, orange
C. yellow, green, blue
D. red, green, yellow
Answer: | A | sciq |
Which body system releases hormones that act on target cells to regulate development, growth, energy metabolism, reproduction, and many behaviors?
A. lymphatic
B. pituitary
C. exocrine system
D. endocrine system
Answer: | D | sciq |
What is the main difference between eukaryotic and prokaryotic cells?
A. eukaryotic cells have a cell wall
B. eukaryotic cells have a flagella
C. eukaryotic cells have a nucleus
D. prokaryotic cells have a nucleus
Answer: | C | sciq |
What forms when cells start to grow out of control?
A. inflammation
B. tumor
C. moles
D. fat
Answer: | B | sciq |
Organs, vessels, and lymph make up what system?
A. digestive
B. circulatory
C. nervous
D. lymphatic
Answer: | D | sciq |
Like the marketplace, the metabolic economy is regulated by what basic principle?
A. supply and demand
B. price and demand
C. jobs and demand
D. industrial and demand
Answer: | A | sciq |
As roots grow longer they will always do what?
A. grow downward
B. get thicker
C. change direction
D. get larger
Answer: | A | sciq |
Which virus causes cold sores?
A. flu virus
B. microbes virus
C. herpes virus
D. stilts virus
Answer: | C | sciq |
Duplicated chromosomes are composed of two sister what?
A. chromatids
B. nucleotides
C. karyotypes
D. eukaryotes
Answer: | A | sciq |
What is the name of anything that has mass and takes up space?
A. depth
B. solid
C. matter
D. carbon
Answer: | C | sciq |
The units of time, day and year are based on what?
A. motions of the sun
B. gravitational waves
C. moon phases
D. motions of earth
Answer: | D | sciq |
What is the term for an amount of force pushing against a given area?
A. force
B. resistance
C. mass
D. pressure
Answer: | D | sciq |
What is the region called where an electron is most likely to be found?
A. the shell
B. the nucleus
C. the ellipse
D. the orbital
Answer: | D | sciq |
Many glasses eventually crystallize, rendering them brittle and this?
A. soft
B. powdered
C. opaque
D. molten
Answer: | C | sciq |
What is magnetism produced by an electrical current?
A. electromagnetism
B. strong magnetism
C. hydromagnetism
D. exomagnetism
Answer: | A | sciq |
A weak and temporary dipole that influences nearby atoms through electrostatic attraction and repulsion is known as what?
A. a fused dipole
B. an debased dipole
C. an incomplete dipole
D. an instantaneous dipole
Answer: | D | sciq |
The motion of molecules in a gas is random in magnitude and direction for individual molecules, but a gas of many molecules has a predictable distribution of what, which is called the maxwell-boltzmann distribution?
A. molecular rate
B. molecular size
C. molecular speeds
D. molecular shape
Answer: | C | sciq |
What helps the cell continually renew itself?
A. vacuole
B. lysosomes
C. centrosome
D. lymphocytes
Answer: | B | sciq |
One of the fundamental laws of chemistry deals with the fact that we cannot create or destroy what?
A. matter
B. protein
C. time
D. stars
Answer: | A | sciq |
What are the tiny, tube-shaped structures found inside a kidney called?
A. nephrons
B. jejunum
C. dendrites
D. neurons
Answer: | A | sciq |
How many sperm does it take to fertilize an egg?
A. five
B. one
C. two
D. ten
Answer: | B | sciq |
What type of climate is found mostly near the equator?
A. warm subtropical
B. warm tropical
C. hot dessert
D. cool tropical
Answer: | B | sciq |
Metabolism is the collection of what that occur in an organism?
A. growth reactions
B. mechanical reactions
C. mineral reactions
D. chemical reactions
Answer: | D | sciq |
What is the arrangement of a t-tubule with the membranes of sr on either side called?
A. acid
B. orchid
C. triad
D. aracnid
Answer: | C | sciq |
What is the name of the order that salamanders belong to?
A. platyhelminth
B. urodela
C. aneuploid
D. oronthalic
Answer: | B | sciq |
What is the tough tissue that contains collagen?
A. fiber
B. membrane
C. cartilage
D. muscle
Answer: | C | sciq |
What common ailment is typically caused by tense muscles in the shoulders, head and neck?
A. headache
B. fever
C. disturbances
D. pollution
Answer: | A | sciq |
How many watts equals a horse power?
A. 904
B. 745
C. 375
D. 695
Answer: | B | sciq |
Some microorganisms can digest cellulose, breaking it down into what?
A. glucose monomers
B. fructose polymers
C. gluclose polymers
D. fructose monomers
Answer: | A | sciq |
Where does most geological activity take place?
A. plate boundaries
B. plate medians
C. plate buildings
D. plate waves
Answer: | A | sciq |
What can be used to mechanically separate the two elements by attracting the iron filings out of the mixture and leaving the sulfur behind?
A. graduated cylinder
B. laser
C. centrifuge
D. magnet
Answer: | D | sciq |
What forms when a solute dissolves in a solvent?
A. liquid
B. gas
C. solution
D. chemical
Answer: | C | sciq |
The enteric nervous system provides intrinsic innervation, and the autonomic nervous system provides this?
A. autonomic innervation
B. complex innervation
C. extrinsic innervation
D. arise innervation
Answer: | C | sciq |
Virtually all aquatic organisms depend directly or indirectly on what for food?
A. prokaryotes
B. ground beef
C. growths
D. protists
Answer: | D | sciq |
Saltwater is a homogeneous mixture, another term for what?
A. lipid
B. structure
C. element
D. solution
Answer: | D | sciq |
What connects the two hemispheres of the brain?
A. disruption callosum
B. holy callosum
C. The brain stem
D. corpus callosum
Answer: | D | sciq |
Cells like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its dna is surrounded by a membrane), and has other membrane-bound organelles that allow for what?
A. replicating of functions
B. scrobipalpa of functions
C. misuse of functions
D. compartmentalization of functions
Answer: | D | sciq |
Colonial organisms were probably one of the first evolutionary steps towards which type of organisms?
A. fetus
B. multicellular
C. mutated
D. double cellular
Answer: | B | sciq |
What do you call accumulation of excess water in the tissues?
A. gout
B. asthma
C. diuretic
D. edema
Answer: | D | sciq |
Transport epithelia that function in maintaining water balance also often function in disposal of what?
A. absorption wastes
B. metabolic wastes
C. bacteria
D. organisms wastes
Answer: | B | sciq |
What is magnetism produced by electricity called?
A. momentum
B. excitation
C. electrical attraction
D. electromagnetism
Answer: | D | sciq |
What is an area that is saturated with water or covered by water for at least one season of the year?
A. a bog
B. a wetland
C. a valley
D. a peat
Answer: | B | sciq |
How are bacteria identified and classified?
A. by their color
B. by their shape
C. by there cell count
D. by there movement
Answer: | B | sciq |
What do we call forces that act on the system from outside?
A. static
B. material
C. external
D. internal
Answer: | C | sciq |
Prostaglandins also help regulate the aggregation of platelets, one step in the formation of what?
A. cysts
B. bloats
C. blood clots
D. acne
Answer: | C | sciq |
Deceleration is the opposite of what?
A. acceleration
B. stimulation
C. stopping
D. vibration
Answer: | A | sciq |
Each cell and every living thing requires what?
A. potassium
B. salt
C. calcium
D. energy
Answer: | D | sciq |
In the human body, what do you call the intersection where the paths for air and food cross.?
A. pharynx
B. cloaca
C. larynx
D. esophagus
Answer: | A | sciq |
Air conditioning systems can incubate certain bacteria and what else?
A. Cancer
B. mold
C. root
D. wood
Answer: | B | sciq |
The toothlessness of modern birds, which serves to trim the weight of the head, is an example of what?
A. adaptation
B. variety
C. genetic drift
D. mutation
Answer: | A | sciq |
What are the active transport mechanisms by which molecules enter and leave the cell inside vesicles?
A. oxidation and exocytosis
B. endocytosis and exocytosis
C. endocytosis and oxidation
D. dielectric and exocytosis
Answer: | B | sciq |
Fractures, rickets, and osteoarthritis all affect what part(s) of the body?
A. fossils
B. Heart
C. animals
D. bones
Answer: | D | sciq |
Name the closest living relatives of tetrapods?
A. spinefishes
B. shrimp
C. lungfishes
D. lumpfishes
Answer: | C | sciq |
What type of air may get stuck on the windward side of a mountain range?
A. brisk air
B. live air
C. steady air
D. maritime air
Answer: | D | sciq |
Most protists are aquatic organisms and need what kind of environment to survive?
A. warm
B. moist
C. dry
D. cold
Answer: | B | sciq |
The help with diffusion comes from special proteins in the membrane known as what?
A. transport proteins
B. installation proteins
C. navigation proteins
D. lazy proteins
Answer: | A | sciq |
The extracellular matrix of most animal cells contains abundant amounts of what protein, which helps hold things together?
A. collagen
B. keratin
C. actin
D. elastin
Answer: | A | sciq |
What are two types of lobe finned fish?
A. piranha and pike
B. sharks and piranha
C. coelacanths and lungfish
D. moles and lungfish
Answer: | C | sciq |
What is the rate of change of velocity called?
A. speed
B. vibration
C. transmission
D. acceleration
Answer: | D | sciq |
What is the main organ required for respiration in mammals?
A. the heart
B. the diaphragm
C. the lungs
D. the brain
Answer: | C | sciq |
Molecules are represented by symbols that all who agree on?
A. astrologists
B. geologists
C. chemists
D. physics
Answer: | C | sciq |
What is the smallest unit of time commonly based on?
A. hour
B. millimeter
C. second
D. minute
Answer: | C | sciq |
Atoms cannot be subdivided, created, or what?
A. contained
B. contaminated
C. observed
D. destroyed
Answer: | D | sciq |
What process changes a liquid to a gas without boiling?
A. evaporation
B. bubbling
C. absorption
D. melting
Answer: | A | sciq |
Every peripheral nerve is connected directly or indirectly to what?
A. the umbilical chord
B. the spinal cord
C. the functional cord
D. the optimal cord
Answer: | B | sciq |
The four phases of mitosis are prophase, metaphase, anaphase and what?
A. postphase
B. telophase
C. spirogyra
D. trichina
Answer: | B | sciq |
Pathogenic prokaryotes usually cause illness by producing what?
A. poisons
B. ions
C. insects
D. organisms
Answer: | A | sciq |
Once cells _______, they can no longer divide
A. propagate
B. differentiate
C. mature
D. migrate
Answer: | B | sciq |
Phase labels - and even special conditions - are sometimes included for the substances that are part of what?
A. toxic equations
B. chemical equations
C. carbon equations
D. solid equations
Answer: | B | sciq |
Body waves travel through the earth and arrive at seismograms before what?
A. surface waves
B. velocity waves
C. sound waves
D. function waves
Answer: | A | sciq |
What are the outpocketings of the digestive tract that remove nitrogenous wastes and function in osmoregulation?
A. intestinal tubules
B. malpighian tubules
C. olivary tubules
D. integumentary tubules
Answer: | B | sciq |
What were the first photosynthetic organisms on earth?
A. fungi
B. trees
C. bacteria
D. mosses
Answer: | C | sciq |
What do you call the substance in a cooling system that has a low boiling point and changes between liquid and gaseous states?
A. emission
B. coolant
C. refrigerant
D. byproduct
Answer: | C | sciq |
Certain characteristics are frequently inherited together because of what?
A. mitosis
B. linkage
C. correlation
D. genetic combination
Answer: | B | sciq |
Which organ protects the body from injury, water loss, and microorganisms?
A. liver
B. stomach
C. kidney
D. skin
Answer: | D | sciq |
What is the term for the sudden movement of large blocks of rock and soil down a slope?
A. sludge
B. torrent
C. hurricane
D. slump
Answer: | D | sciq |
What is the comparison of two factors within a population?
A. variable
B. correlation
C. curve
D. hypothesis
Answer: | B | sciq |
What process is the opposite of nitrogen fixation?
A. denitrification
B. digestion
C. percolation
D. respiration
Answer: | A | sciq |
Plant-like protists produce oxygen through which process?
A. photosynthesis
B. glycolysis
C. metamorphosis
D. respiration
Answer: | A | sciq |
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