question stringlengths 68 502 | answer stringclasses 4
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Question: Red blood cells, white blood cells, platelets, and plasma are all components of what fluid?
Options:
A. heart
B. Vessals
C. blood
D. brain | C |
Question: Who created the idea of an evolutionary tree to represent the relationships between different species and their common ancestors?
Options:
A. Scopes
B. Carl Sagan
C. Isaac Newton
D. charles darwin | D |
Question: What organs absorb water and nutrients from the soil?
Options:
A. buds
B. leaves
C. flowers
D. roots | D |
Question: What does magma that cools underground form?
Options:
A. new crust
B. chambers
C. instrusions
D. fluctuations | C |
Question: Which season is moist, causing the most thunderstorms?
Options:
A. summer
B. winter
C. autumn
D. spring | A |
Question: What are the two hormones primarily responsible for maintaining homeostasis of blood glucose levels?
Options:
A. dopamine and melanin
B. anabolic and metabolic
C. insulin and glucagon
D. insulin and estrogen | C |
Question: What important process takes place in specialized tissue inside plant leaves?
Options:
A. mitosis
B. photosynthesis
C. reproduction
D. pollination | B |
Question: What type of plants were the first to evolve?
Options:
A. nonvascular
B. kilocalorie
C. vascular
D. cocklebur | A |
Question: In multicellular organisms, specialized cells may be organized into what, which in turn may be organized into organs?
Options:
A. nutrients
B. tissues
C. muscles
D. blood cells | B |
Question: What are accessory digestive organs critical for breaking down?
Options:
A. hormones
B. food
C. enzymes
D. pathogens | B |
Question: The direction of prevailing winds determines the type of what that usually moves over an area?
Options:
A. water mass
B. weather
C. air mass
D. storm | C |
Question: As blood glucose levels rise what is released from the pancreas?
Options:
A. estrogen
B. insulin
C. adrenaline
D. hemoglobin | B |
Question: Hydrocarbons are combined with oxygen in a series of enzymatic steps to product water, carbon dioxide, and energy, which is stored in the form of what?
Options:
A. energy
B. light
C. reactive molecules
D. dormant molecules | C |
Question: The validity of thought experiments, of course, is determined by this?
Options:
A. actual observation
B. predictive observation
C. hypothetical observation
D. theoretical observation | A |
Question: What do you call a close relationship between two species that benefits both?
Options:
A. commensalism
B. parasitic relationship
C. primordial relationship
D. symbiotic relationship | D |
Question: Generators convert mechanical energy to which kind?
Options:
A. radiation
B. static
C. electrical
D. kinetic | C |
Question: What is common in two eukaryotic proteins?
Options:
A. cells
B. DNA
C. translation
D. one domain | D |
Question: What do you call egg-shaped galaxies, which are reddish to yellowish in color because they contain mostly old stars?
Options:
A. spiral galaxies
B. elliptical galaxies
C. conical galaxies
D. irregular galaxies | B |
Question: When it was found that, without the force of gravity exerting pressure on the bones, bone mass was lost in astronauts, what kind of exercise provided an antidote?
Options:
A. sedentary
B. aerobic
C. anaerobic
D. resistive | D |
Question: What can occur during periods of heavy rain?
Options:
A. floods
B. volcanoes
C. earthquakes
D. glaciers | A |
Question: What type of energy can be used to change the position or shape of an object, thus giving it potential energy?
Options:
A. kinetic energy
B. harmonic energy
C. binary energy
D. static energy | A |
Question: What equals the output power divided by the input power?
Options:
A. efficiency
B. potential
C. output
D. inertia | A |
Question: Overpopulation takes place when the number of organisms in an area exceeds what?
Options:
A. predators
B. consumers
C. carrying capacity
D. biome size | C |
Question: There are six fundamentally different kinds of nuclear decay reactions, and each releases a different kind of particle or what?
Options:
A. energy
B. protein
C. mineral
D. mass | A |
Question: What is the only metal that is a liquid at room temperature?
Options:
A. copper
B. mercury
C. aluminum
D. tin | B |
Question: Heart valves prevent what kind of blood flow from happening in the heart?
Options:
A. backflow
B. quick flow
C. slow flow
D. irregular flow | A |
Question: What is the source of energy for photosynthesis?
Options:
A. light
B. air
C. carbon
D. gravity | A |
Question: Different types of interference include destructive and what else?
Options:
A. constructive
B. consistent
C. active
D. helpful | A |
Question: What is anything that causes cancer called?
Options:
A. chemical
B. bacteria
C. carcinogen
D. pesticide | C |
Question: In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is called what?
Options:
A. hypothermic
B. acetic
C. hydrophilic
D. hypertonic | D |
Question: What broad group of animals - which includes rats, dogs and camels - have highly developed brains and often perform work for humans?
Options:
A. mammals
B. reptiles
C. amphibians
D. arachnids | A |
Question: What term describes a way that small molecules or ions move across the cell membrane without input of energy by the cell?
Options:
A. physical transport
B. impassive transport
C. immune transport
D. passive transport | D |
Question: Do most humans feed at one trophic level, or more than one?
Options:
A. more than one
B. none
C. one
D. less than one | A |
Question: What is it called when two waves combine to create a larger wave?
Options:
A. Destructive Interference
B. wave propagation
C. constructive interference
D. consistent interference | C |
Question: What is the study of the relationship between electricity and chemical reactions called?
Options:
A. electrochemistry
B. inorganic chemistry
C. analytical chemistry
D. physical chemistry | A |
Question: What is the term for expelling air out of the body through the nose or mouth?
Options:
A. perspiration
B. exhalation
C. induction
D. inhalation | B |
Question: The lowest resonant frequency is called the what?
Options:
A. basic
B. fundamental
C. lowest
D. simplest | B |
Question: Body waves and surface waves are the two major types of what, which occur during earthquakes?
Options:
A. seismic waves
B. sound waves
C. current waves
D. tidal waves | A |
Question: Inferior rotation occurs during limb adduction and involves the downward motion of what?
Options:
A. glenoid cavity
B. dialysate cavity
C. pelvic cavity
D. choroidal cavity | A |
Question: The speed of an electromagnetic wave is the product of its wavelength and what else?
Options:
A. height
B. density
C. resonance
D. frequency | D |
Question: Electrons in inner shells are called what?
Options:
A. core electrons
B. surface electrons
C. valence electrons
D. inner electrons | A |
Question: The binding of complementary bases allows dna molecules to take their well-known shape, called a what?
Options:
A. single helix
B. double helix
C. simple helix
D. triple helix | B |
Question: What are the only amphibians without legs?
Options:
A. crustaceans
B. newts
C. caecilians
D. porifera | C |
Question: Plants, fungi, bacteria and archaea cells all have what feature that keeps them rigid that animal cells do not have?
Options:
A. plastids
B. cell walls
C. cell membrane
D. cytoplasm | B |
Question: What type of interspecies relationship involves one party being actively harmed?
Options:
A. symbiosis
B. mutualism
C. mosaicism
D. parasitism | D |
Question: Which nervous system consists of all the nervous tissue that lies outside the central nervous system?
Options:
A. function nervous system
B. auxiliary nervous system
C. significant nervous system
D. peripheral nervous system | D |
Question: What do organisms use to grow and repair themselves?
Options:
A. diffusion
B. mutation
C. cell division
D. cell solution | C |
Question: The afferent arterioles service about 1.3 million of what in each kidney?
Options:
A. dendrites
B. neurons
C. axons
D. nephrons | D |
Question: Kyphosis, lordosis, and scoliosis are all diseases involving improper curvature of which bodily structure (which is supposed to be curved in a certain way anyway)?
Options:
A. femur
B. aorta
C. lungs
D. spine | D |
Question: What do herbivores eat?
Options:
A. minerals
B. meat and plants
C. plants
D. animals | C |
Question: What important aspect of the scientific method is a suggested explanation for an event, which can be tested?
Options:
A. independent variable
B. scientific control
C. string theory
D. hypothesis | D |
Question: What distant and extraordinarily energetic objects now seem to be early stages of galactic evolution with a supermassive black-hole-devouring material?
Options:
A. quasars
B. pulsars
C. neutrinos
D. stars | A |
Question: Which gland is an extension of the hypothalamus?
Options:
A. adrenal gland
B. salivary gland
C. pineal gland
D. posterior pituitary gland | D |
Question: Energy often changes between potential and what other kind of energy?
Options:
A. magnetic
B. kinetic
C. thermal
D. realized | B |
Question: As the prokaryotic cell size increases, what happens to its surface area-to-volume ratio?
Options:
A. increases
B. decreases
C. halts
D. stagnates | B |
Question: Why are seeds of a pine cone easily carried by the wind and dispersed?
Options:
A. seeds are sticky
B. seeds are dense
C. seeds are small
D. seeds have wings | D |
Question: What do dendrites from the cell body recieve impulses from?
Options:
A. axon
B. myelin
C. other cells
D. other neurons | D |
Question: During what are deletions and duplications especially likely to occur?
Options:
A. meiosis
B. nucleus
C. endothermia
D. electrolysis | A |
Question: What causes maple leaves to change their colors?
Options:
A. radiation reactions
B. artificial preservatives
C. factor reactions
D. chemical reactions | D |
Question: The cell body contains what central structure along with other organelles?
Options:
A. neutron
B. nucleus
C. protons
D. electron | B |
Question: What is the term for the number that describes an electron's orbital orientation in space?
Options:
A. imaging quantum number
B. magnetic quantum number
C. magnetic electron number
D. relative quantum number | B |
Question: Where do most red algae species live?
Options:
A. oceans
B. lakes
C. seas
D. rivers | A |
Question: What term is used for darwin's idea that in stable geologic and climatic conditions evolution occurred gradually?
Options:
A. canibalism
B. tinkering
C. gradualism
D. elitism | C |
Question: What element is all life built around?
Options:
A. neon
B. carbon
C. hydrogen
D. oxygen | B |
Question: What are seamounts that rise above the water surface called?
Options:
A. islands
B. reefs
C. sandbars
D. coasts | A |
Question: Though often regarded as the supporting cast of the nervous system, glial cells in the brain actually outnumber what by a factor of ten?
Options:
A. neurons
B. blood cells
C. electrons
D. muscles | A |
Question: Dinosaurs filled the niches that mammals fill today during which era?
Options:
A. Phanerozoic
B. mesozoic
C. Cenozoic
D. Proterozoic | B |
Question: The magnet field of earth is called what?
Options:
A. atmosphere
B. ionosphere
C. troposphere
D. magnetosphere | D |
Question: What two types of hormones regulate mammalian reproduction?
Options:
A. pheromones and enzymes
B. endorphins and adrenaline
C. tropic and sex
D. tropic and subtropic | C |
Question: In addition to five classes of fish, what other classes make up the species of vertebrates?
Options:
A. amphibians, reptiles, birds, and mammals
B. insects, amphibians, reptiles, and birds
C. amphibians , vertebrae , birds , and mammals
D. reptiles, birds, mammals, and primates | A |
Question: What is the method of reproduction for echinoderms?
Options:
A. internal fertilization
B. fragmentation
C. pollination
D. external fertilization | D |
Question: What is happening to the rate of the expansion of the universe?
Options:
A. it is unknown
B. it is decreasing
C. it is increasing
D. it is stable | C |
Question: What are required when the damage from trauma or infection cannot be closed with sutures or staples?
Options:
A. skin grafts
B. tree grafts
C. bone grafts
D. debris grafts | A |
Question: In addition to a vibrating electric field what does an electromagnetic wave consist of?
Options:
A. magnetic field
B. gravitational field
C. molecular field
D. radiation field | A |
Question: What type of bones serve as points of attachment for muscles and often protect internal organs?
Options:
A. flat bones
B. sesamoid bones
C. short bones
D. irregular bones | A |
Question: The presence of what stratospheric gas layer decreases the frequency of skin cancer and other damaging effects of ultraviolet radiation?
Options:
A. cumulonimbus
B. plasma
C. ozone
D. smog | C |
Question: The characteristic sound of a motorcycle buzzing by is an example of which effect?
Options:
A. polar effect
B. warp effect
C. coreolis effect
D. doppler effect | D |
Question: What protects the scalp from ultraviolet light exposure and loss of body heat?
Options:
A. receding hair
B. head hair
C. temporal hair
D. ground hair | B |
Question: What is the name given to the use of controlled nuclear fusion as an energy source?
Options:
A. thermonuclear power
B. generator power
C. half-life
D. fossil fuel | A |
Question: Some compounds containing hydrogen are members of an important class of substances known as what?
Options:
A. acids
B. ions
C. proteins
D. bases | A |
Question: In which organ are bile acids made
Options:
A. gall bladder
B. spleen
C. kidney
D. liver | D |
Question: What is the layer of electrons that encircle the nucleus at a distinct energy level called?
Options:
A. molecular shell
B. vortex shell
C. ions shell
D. electron shell | D |
Question: What is the most common way to classify stars?
Options:
A. by distance
B. by age
C. by color
D. by size | C |
Question: What is a homogeneous mixture also known as?
Options:
A. mixture
B. element
C. structure
D. solution | D |
Question: Living organisms are made up of what type of carbon-based compounds?
Options:
A. microbial
B. biophysical
C. biochemical
D. synthetic | C |
Question: What classification system was developed by a swedish botanist trying to classify all known living things?
Options:
A. taxonomical system
B. linnaean system
C. plantological system
D. bionumerical system | B |
Question: The word science is derived from what latin word?
Options:
A. scentia
B. scitifica
C. scefitana
D. sceria | A |
Question: In a model of an atom, the level with the least energy is the one closest to what?
Options:
A. protons
B. center
C. surface
D. nucleus | D |
Question: What is the process of making atp without oxygen called?
Options:
A. condensation
B. photosynthesis
C. Cell Division
D. fermentation | D |
Question: What is the type of mining called when materials are removed along a strip?
Options:
A. strip mining
B. edge mining
C. pit mining
D. surface mining | A |
Question: Chlorine is a nonmetal and gains one electron in becoming a what?
Options:
A. atom
B. carbonate
C. anion
D. sulfate | C |
Question: The most common mode of asexual reproduction is through the formation of asexual these?
Options:
A. spores
B. cells
C. fibers
D. atoms | A |
Question: Some species of fish carry their fertilized eggs in their mouth until they hatch; this is called what?
Options:
A. spawning
B. schooling
C. internal reproduction
D. mouth brooding | D |
Question: In a chemical reaction, what, in general, comes together in order to form a product?
Options:
A. propellants
B. liquids
C. reactants
D. gases | C |
Question: What decides what may enter or leave a cell?
Options:
A. cell membrane
B. golgi apparatus
C. nucleus
D. cell wall | A |
Question: What trophic level are secondary consumers (which eat primary consumers) considered to be?
Options:
A. trophic level 5
B. trophic level 3
C. trophic level 2
D. trophic level 4 | B |
Question: What type of map projection is used for small areas to avoid distortion?
Options:
A. gnomic projection
B. mercator projection
C. equatorial projection
D. unmeasured projection | A |
Question: What do atoms form by sharing valence electrons?
Options:
A. ionic bonds
B. neutron bonds
C. covalent bonds
D. phenotype bonds | C |
Question: What is the process that moves particles by rolling or dragging along the bottom of the water?
Options:
A. compression
B. traction
C. compaction
D. isolation | B |
Question: Alkenes react with what to form dihalides?
Options:
A. amines
B. oxides
C. antioxidants
D. halogens | D |
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