subject
float64
question
stringlengths
78
512
answer
stringclasses
4 values
null
Question: Quarks are very tiny particles of matter that make up what? Options: A. electrons and neutrons B. protons and electrons C. atoms and neutrons D. protons and neutrons Answer:
D
null
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. resistive B. sedentary C. aerobic D. anaerobic Answer:
A
null
Question: What is one problem with current methods of aluminum production? Options: A. recycling is cheap B. environmental contaminants C. food shortages D. competition Answer:
B
null
Question: What type of behaviors do not have to be learned or practiced? Options: A. innate behaviors B. protective behaviors C. acquired behaviors D. diverse behaviors Answer:
A
null
Question: Nearly all apicomplexans are parasites of what? Options: A. plants B. stars C. fungi D. animals Answer:
D
null
Question: What is the respiratory pigment of almost every vertebrate? Options: A. iron B. plasma C. insulin D. hemoglobin Answer:
D
null
Question: What happens when an increase in temperature of a gas in a rigid container happens? Options: A. pressure increases B. gas explodes C. container shrinks D. pressure decreases Answer:
A
null
Question: Ions can be formed when atoms lose what other particles? Options: A. protons B. electrons C. neutrons D. shells Answer:
B
null
Question: What kind of volcanic eruptions are less deadly? Options: A. non-explosive B. serial eruptions C. non-dormant D. explosive Answer:
A
null
Question: A heterogeneous mixture of particles of one substance distributed throughout a second substance in a different phase is known as what? Options: A. suspension B. fluid C. disruption D. solution Answer:
A
null
Question: Zinc is more easily oxidized than iron because zinc has a lower reduction potential. since zinc has a lower reduction potential, it is a more what? Options: A. much metal B. active metal C. Trap metal D. usually metal Answer:
B
null
Question: What works through chemical reactions that change the rock? Options: A. chemical weathering B. rock weathering C. chemical breakdown D. gradual weathering Answer:
A
null
Question: Almost all energy at earth's surface comes from where? Options: A. oceans B. wind C. another sun D. the sun Answer:
D
null
Question: In myasthenia gravis, antibodies bind to and block certain receptors on muscle cells, preventing what? Options: A. muscle contraction B. muscle buildup C. muscle diffusion D. muscle layer Answer:
A
null
Question: When statoliths settle to the low point in the chamber, they stimulate what in that location? Options: A. axons B. mechanoreceptors C. nociceptors D. dendrites Answer:
B
null
Question: What do we call the scientific study of heredity and hereditary variation? Options: A. genetics B. geneology C. biology D. chemistry Answer:
A
null
Question: The pubis forms the anterior portion of what bone? Options: A. labia B. clavicle C. femur D. hip bone Answer:
D
null
Question: A van de graff generator produces what type of charge on its dome, causing the tendency to give up electrons? Options: A. positive charge B. no charge C. similar charge D. negative charge Answer:
D
null
Question: What type of matter transmits light without scattering it? Options: A. transparent B. reflective C. smooth D. opaque Answer:
A
null
Question: What is an interesting example of a molecule with two central atoms, which are both c atoms? Options: A. sulfur B. water C. acetylene D. chloride Answer:
C
null
Question: What is the name of the process in which solid food waste is passed out of the body? Options: A. elimination B. evaporation C. extinction D. regurgitation Answer:
A
null
Question: The temperature at which the individual ions have enough kinetic energy to overcome the attractive forces that hold them in place is called? Options: A. melting point B. last point C. boiling point D. occurring point Answer:
A
null
Question: What is the exchange of gases between the body and outside air? Options: A. metabolism B. secretion C. expulsion D. respiration Answer:
D
null
Question: What concentrates wave energy or disperses it? Options: A. wave diffusion B. wave refraction C. a prism D. wave reflection Answer:
B
null
Question: As the organism grows more sophisticated, what happens to the process of gene regulation? Options: A. becomes fractured B. becomes more complex C. becomes simplified D. degenerates Answer:
B
null
Question: What elements do lipids primarily consist of? Options: A. silicon, hydrogen , and oxygen B. helium, hydrogen , and oxygen C. carbon, hydrogen, and oxygen D. iron, hydrogen , and oxygen Answer:
C
null
Question: What term means taking used items and materials and turning them into something new? Options: A. recycling B. reproducing C. collecting D. feeding Answer:
A
null
Question: The temperature at which all molecular motion has ceased is called what? Options: A. absolute zero B. 0 degrees kelvin C. stopping point D. 0 degrees celcius Answer:
A
null
Question: What molecules are usually insoluble in water? Options: A. ions B. acids C. non-polar D. polar Answer:
C
null
Question: What is the name of the scientific field that deals with the general study of the solid earth? Options: A. geology B. astronomy C. chemistry D. physics Answer:
A
null
Question: The net effect of aldosterone is to conserve and increase water levels in the plasma by reducing the excretion of what element, and thus water? Options: A. sodium B. potassium C. lithium D. oxygen Answer:
A
null
Question: Light energy is absorbed by which kind of molecule? Options: A. inorganic B. parasite C. chlorophyll D. nutrient Answer:
C
null
Question: Why is uranus so faint? Options: A. too cold B. polluted atmosphere C. far away D. too small Answer:
C
null
Question: Anemia is a disease that affects what? Options: A. blood B. heart C. kidney D. brain Answer:
A
null
Question: What is the largest level of organization? Options: A. organism B. genome C. protein D. organelle Answer:
A
null
Question: The fossilized skeleton of archaeopteryx looks like that of a dinosaur, but it had what structures modified for flight, a trait associated only with birds among modern animals? Options: A. claws B. fingers C. feathers D. beaks Answer:
C
null
Question: What do you call scientists that study the weather, specifically? Options: A. meteorologists B. forecasters C. hydrologists D. geologists Answer:
A
null
Question: If something is in the state of matter where it has both a definite shape and volume, then what state of matter is it in? Options: A. solid B. gas C. liquid D. plasma Answer:
A
null
Question: What does the geiger counter detect? Options: A. vibration B. radiation C. convection D. moisture Answer:
B
null
Question: What is the outermost layer of the skin? Options: A. nexus B. dermis C. epidermis D. callus Answer:
C
null
Question: Whereas each cell shares the same genome and dna sequence, each cell does not turn on, or express, the same set of what? Options: A. genes B. babies C. balls D. eggs Answer:
A
null
Question: Science works hand in hand with what for the advancement of both? Options: A. government B. technology C. banks D. industry Answer:
B
null
Question: In ovoviviparous fish like shark, what develops inside the mother’s body but without nourishment from the mother? Options: A. genes B. spores C. eggs D. molecules Answer:
C
null
Question: What does rearrangements of chromosomes contribute to the emergence of? Options: A. fewer species B. clones C. extinction D. new species Answer:
D
null
Question: By multiplying the force applied by the perpendicular component of the moment arm,what is determined? Options: A. intensities B. pressure C. torques D. radiation Answer:
C
null
Question: What is the term for protists that produce spores, such as the toxoplasm? Options: A. sporozoans B. newborns C. spermatozoa D. protozoans Answer:
A
null
Question: What is the term for the moles of solute divided by the kilograms of solvent? Options: A. molar solvency B. molar weight C. kilocalorie D. molality Answer:
D
null
Question: If a sedimentary rock layer is not horizontal, what is it? Options: A. deformed B. striated C. igneous D. mineralized Answer:
A
null
Question: Organisms interact with each other and what else? Options: A. outside enviroment B. thermal environment C. atmospheric environment D. physical environment Answer:
D
null
Question: In a mammal the front part of the brain is called the what? Options: A. cerebellum B. brain stem C. thallus D. cerebrum Answer:
D
null
Question: Unlike matter, which is continuously recycled through ecosystems, what must constantly be added to an ecosystem for use by organisms? Options: A. hydrogen B. carbon C. fuel D. energy Answer:
D
null
Question: What happens to the mass number during a nuclear decay process by positron emission? Options: A. it rises B. it decreases C. remains unchanged D. it increases Answer:
C
null
Question: What is the most important element to life? Options: A. nitrogen B. carbon C. hydrogen D. oxygen Answer:
B
null
Question: When dissolved in water, the base sodium hydroxide (naoh) produces sodium ions with what charge? Options: A. positive B. negative C. constant D. similar Answer:
A
null
Question: There are two basic body plans in cnidarians which are called the polyp and what else? Options: A. medusa B. hydra C. stoma D. spore Answer:
A
null
Question: A multiaxial ball-and-socket joint has much more mobility than a what hinge joint? Options: A. triaxial B. quadaxial C. uniaxial D. biaxial Answer:
C
null
Question: Natural resources that are limited in supply and cannot be replaced except over millions of years are known as what? Options: A. biological B. precious C. renewable D. nonrenewable Answer:
D
null
Question: Traits inherited in mendelian patterns are either? Options: A. dominant or autosomal B. recessive or allelic C. dominant or recessive D. divergent or dominant Answer:
C
null
Question: Mollusks are probably most closely related to organisms in the phylum annelida , also known as what? Options: A. sedimentary worms B. indigenous worms C. elongated worms D. segmented worms Answer:
D
null
Question: Chemical energy results from the particular arrangement of atoms in a chemical compound; the heat and light produced in this reaction are due to energy released during the breaking and reforming of what? Options: A. chemical bonds B. acid bonds C. atom bonds D. carbon bonds Answer:
A
null
Question: The amount of heat required to raise a single mass unit of a substance by a single temperature unit is known as what? Options: A. temperature variation B. specific heat C. specific gravity D. solitary heat Answer:
B
null
Question: What bond is the force of attraction that holds together oppositely charged ions? Options: A. iconic B. ionic C. magnetic D. harmonic Answer:
B
null
Question: What is the most common way to classify stars? Options: A. by distance B. by color C. by age D. by size Answer:
B
null
Question: What controls the opening to the airway and gut? Options: A. tongue B. teeth C. mandible D. electrons Answer:
C
null
Question: How do birds learn to avoid eating monarch butterflies? Options: A. instinct B. conditioning C. digestion D. temperature Answer:
B
null
Question: What is a solution with a ph lower than 7 called? Options: A. acid B. neutral C. dioxide D. basic Answer:
A
null
Question: Prokaryotic organisms, like bacteria, reproduce through what process, where they grow and divide in half? Options: A. singular fission B. symbiotic fission C. binary fission D. multiple fission Answer:
C
null
Question: How many chromosomes are in each set? Options: A. 21 B. 22 C. 13 D. 23 Answer:
D
null
Question: What are considered solid lipids that animals use to store energy? Options: A. fats B. proteins C. acids D. sugars Answer:
A
null
Question: What does the inner membrane divide into two internal compartments? Options: A. chitin B. mitochondrion C. epidermis D. golgi apparatus Answer:
B
null
Question: What is the distance between the nuclei of two identical atoms bonded together called? Options: A. cycle radius B. atomic radius C. bond radius D. sleep radius Answer:
B
null
Question: What is the term for the wavelengths of light humans can see? Options: A. visible light B. radiation C. ultraviolet light D. distinct light Answer:
A
null
Question: What type of tissue consists of cells that cover inner and outer body surfaces? Options: A. mitochondrial ? B. Soft Tissue C. epithelial? D. aberrant ? Answer:
C
null
Question: What type of charge does a neutron have? Options: A. positive charge B. neutral or no charge C. half charge D. negative charge Answer:
B
null
Question: Grasses such as wheat, rice, and corn are examples of fibrous root systems. fibrous root systems are found in monocots; tap root systems are found in these? Options: A. monocots B. dicots C. mosses D. gymnosperms Answer:
B
null
Question: What is the critical factor for the survival of segmented worms? Options: A. sunlight and water B. water and humidity C. sunlight and warmth D. humidity and sunlight Answer:
B
null
Question: Nonmetals typically lack what capability, because they hold onto their electrons? Options: A. repelling electricity B. mental capacity C. conducting electricity D. magnetic attraction Answer:
C
null
Question: Atmospheric pressure is low in what anatomically named part of a hurricane? Options: A. nose B. leg C. mouth D. eye Answer:
D
null
Question: Thomson’s plum pudding model shows the structure of what? Options: A. cell B. atom C. nucleus D. DNA Answer:
B
null
Question: What is the name of the complex mixture that consists of water, proteins, fats, carbohydrates, and minerals? Options: A. sperm B. plasma C. milk D. blood Answer:
C
null
Question: What do voltmeters measure? Options: A. frequency B. voltage C. amplitude D. temperature Answer:
B
null
Question: What do skeletal muscles enable the body to do? Options: A. move B. look C. breathe D. eat Answer:
A
null
Question: When the oval window vibrates, it causes what else to vibrate as well? Options: A. the cochlea B. timpani C. hammer and anvil D. cilia Answer:
A
null
Question: What organ interprets what our sensory organs sense? Options: A. thyroid B. brain C. nerves D. lungs Answer:
B
null
Question: In drosophila, gradients of morphogens encoded by maternal effect genes determine what? Options: A. body mass B. cell mass C. body axes D. cells axes Answer:
C
null
Question: How many large eggs are generated during oogenesis? Options: A. 3 B. one C. 4 D. 2 Answer:
B
null
Question: Is wind power renewable or non renewable? Options: A. non renewable B. neither C. depends D. renewable Answer:
D
null
Question: Size is a general feature of cell structure that relates to? Options: A. instance B. activation C. function D. timing Answer:
C
null
Question: What can echinoderms sense with their simple eyes? Options: A. electricity B. light C. shapes D. colors Answer:
B
null
Question: What are the most abundant source of energy found in most foods? Options: A. vitamins B. carbohydrates C. fats D. proteins Answer:
B
null
Question: Layers of placental transfer cells help transport nutrients to the embryos as they develop into what? Options: A. keratinocytes B. sporophytes C. fibroblasts D. kinesins Answer:
B
null
Question: The hormones epinephrine and norepinephrine are associated with what rhyming mechanism? Options: A. light - or- flight B. right - or - flight C. fight-or-flight D. bright - or - flight Answer:
C
null
Question: What mainly gives the body energy? Options: A. sunlight B. fuel C. water D. food Answer:
D
null
Question: The marine west coast climate gets lots of rain because of what being nearby? Options: A. the Sun B. the ocean C. the mountains D. highways Answer:
B
null
Question: What evolutionary concept characterizes a species by body shape and other structural features? Options: A. geologic species concept B. spontaneous evolution theory C. morphological species concept D. primary speciation Answer:
C
null
Question: The role that a particular species plays in its ecosystem is also known as what? Options: A. niche B. unique C. type D. market Answer:
A
null
Question: The two stages of photosynthesis are the light reactions and what? Options: A. digestive cycle B. reproductive cycle C. respiratory cycle D. calvin cycle Answer:
D
null
Question: Bursitis is the inflammation of a bursa near what? Options: A. joint B. lung C. brain stem D. muscle Answer:
A
null
Question: What type of plants do not typically require deep roots or woody stems? Options: A. bacterial plants B. surface plants C. aquatic plants D. dry plants Answer:
C
null
Question: What is another term for hydraulic fracturing? Options: A. fracking B. drilling C. permeating D. erupting Answer:
A