question stringlengths 68 502 | answer stringclasses 4
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Question: What is the process of the blastula forming 3 layers of cells called?
Options:
A. gastrulation
B. internalization
C. Mitosis
D. fermentation | A |
Question: How does air pressure change as altitude increases?
Options:
A. it decreases
B. It increases
C. goes up and down
D. stays the same | A |
Question: In harmonic motion there is always what force, which acts in the opposite direction of the velocity?
Options:
A. inorganic force
B. restorative force
C. locomotion force
D. magnetic force | B |
Question: Many of the protist species classified into the supergroup excavata are asymmetrical, single-celled organisms with a feeding groove “excavated” from one side. this supergroup includes heterotrophic predators, photosynthetic species, and these?
Options:
A. insects
B. parasites
C. mammals
D. reptiles | B |
Question: What is the thick fluid in the space between bones that cushions the joint?
Options:
A. synovial fluid
B. interstitial fluid
C. collagen
D. amniotic fluid | A |
Question: What is the name of the portion of a nucleotide lacking phosphate groups?
Options:
A. a nucleoside
B. nucleolus
C. a nucleobase
D. nuclear shell | A |
Question: The band disappears before metaphase but predicts the future plane of what?
Options:
A. cell division
B. cell wall
C. cell solution
D. cell matter | A |
Question: What is a common age-related bone disease in which bone density and strength is decreased?
Options:
A. arthritis
B. osteoporosis
C. lupus
D. fibrosis | B |
Question: Bacteria reproduce through what process?
Options:
A. binary fission
B. tertiary fission
C. residual fission
D. binary fusion | A |
Question: What is the branch of science that studies the physical world?
Options:
A. Ecology
B. botany
C. physics
D. social science | C |
Question: Osteoclasts break down bone to maintain mineral what?
Options:
A. homeostatis
B. density
C. fluctuations
D. polarity | A |
Question: Which carbohydrates can be classified in terms of chain length?
Options:
A. simple
B. complex
C. atomic
D. binary | A |
Question: What is altered by changes in cardiac output by variable contriction of the arterioles?
Options:
A. blood pressure
B. blood type
C. pulse
D. heart rhythm | A |
Question: Eukaryotic cells are cells that contain what?
Options:
A. a nucleus
B. inorganic matter
C. pathogens
D. energy | A |
Question: What distinctive dna shape forms when the two nucleotide chains wrap around the same axis?
Options:
A. double helix
B. chain helix
C. single spiral
D. double spiral | A |
Question: The oxygen regions of the water molecules have what kind of charge?
Options:
A. neutral
B. positive
C. negative
D. certain | C |
Question: Humans use many compounds that were first discovered or derived from living organisms as medicines: secondary plant compounds, animal toxins, and antibiotics produced by these?
Options:
A. molecules and fungi
B. tumors and fungi
C. bacteria and fungi
D. bacteria and tumors | C |
Question: Millipedes and centipedes are the most commonly found examples of what group of arthropods?
Options:
A. unicellular myriapoda
B. protists myriapoda
C. Disperse Myriapoda
D. subphylum myriapoda | D |
Question: Glass breaking is an example of what type of change that doesn't affect the makeup of matter?
Options:
A. physical
B. thermal
C. chemical
D. reversible | A |
Question: Aldehydes, ketones, carboxylic acids, esters, and ethers all have functional groups containing what element?
Options:
A. methane
B. oxygen
C. silicon
D. carbon | B |
Question: What forms when an atom gains electrons?
Options:
A. crystals
B. bonds
C. anions
D. cations | C |
Question: There are several types of wetlands including marshes, swamps, bogs, mudflats, and salt marshes. the three shared characteristics among these types—what makes them wetlands—are their hydrology, hydrophytic vegetation, and this?
Options:
A. sandy soils
B. hydric soils
C. stibnite soils
D. niya soils | B |
Question: What element is typically used to shield things from gamma rays?
Options:
A. silver
B. gold
C. lead
D. aluminum | C |
Question: What is the combination of tissues that provides a tough, woody external covering on the stems of trees called?
Options:
A. cuticle
B. bark
C. epidermis
D. scale | B |
Question: Because microorganisms can go through several generations in a matter of hours, their gene expression profiles adapt to the new laboratory environment very quickly. in addition, the vast majority of bacterial species resist being cultured in this?
Options:
A. isolation
B. colonies
C. water
D. substrate | A |
Question: Examples of acute forms of what type of diseases include the common cold and influenza?
Options:
A. viral diseases
B. bacterial diseases
C. inherited diseases
D. attributable diseases | A |
Question: What do red blood cells carry?
Options:
A. carbon dioxide
B. nitrogen
C. hydrogen
D. oxygen | D |
Question: The sympathetic division of the vertebrate autonomic nervous system has evolved the fight-or-flight response to counter stress-induced disruptions of this?
Options:
A. homeostasis
B. equilibrium
C. body temperature
D. blood pressure | A |
Question: What light-producing process occurs when a substance absorbs shorter-wavelength ultraviolet light and then gives off the energy as visible light?
Options:
A. luminescence
B. candescence
C. resistance
D. fluorescence | D |
Question: What lies between the continental shelf and the abyssal plain?
Options:
A. continental slope
B. equator
C. continental belt
D. successive slope | A |
Question: In the first beaker, distilled water does not conduct a current because water is a what?
Options:
A. magnetic compound
B. pure element
C. molecular compound
D. solute | C |
Question: What is another term for hydraulic fracturing?
Options:
A. erupting
B. fracking
C. permeating
D. drilling | B |
Question: In what unit is speed usually measured?
Options:
A. radians
B. Celcius
C. miles per hour
D. calories | C |
Question: Unlike liver bile, 'juice' produced by what organ is clear and composed mostly of water along with some salts, sodium bicarbonate, and digestive enzymes?
Options:
A. spleen
B. gallbladder
C. stomach
D. pancreas | D |
Question: What term means opposition to the flow of electric charges that occurs when electric current travels through matter?
Options:
A. resistance
B. antagonism
C. polarity
D. diffusion | A |
Question: According to law, what must packaged foods carry?
Options:
A. pricing
B. warnings
C. country of origin
D. nutrition facts label | D |
Question: What type of terminal releases neurotransmitters at a synapse?
Options:
A. axon
B. chloride
C. secretion
D. acetylcholine, | A |
Question: What chemical affects the onset of puberty and duration?
Options:
A. acids
B. enzymes
C. hormones
D. steroids | C |
Question: What are the only plants with a life cycle in which the gametophyte generation is dominant?
Options:
A. photoreactive
B. nonvascular
C. vascular plants
D. nonpermeable | B |
Question: What do angiosperms produce?
Options:
A. needles
B. flowers and fruit
C. leaves
D. scales | B |
Question: What should you let liquid waste do before placing the container in the trash?
Options:
A. melt
B. evaporate
C. expand
D. generate | B |
Question: Mammoths, close genetic relatives of modern elephants, are believed to have gone extinct due to hunting by humans and what factor?
Options:
A. earthquakes
B. climate change
C. volcanic eruptions
D. migration change | B |
Question: What is the ph level of neutral, pure water?
Options:
A. six
B. seven
C. six and a half
D. five | B |
Question: Which organ system defends the body from pathogens and other causes of disease?
Options:
A. digestion system
B. immune system
C. nervous system
D. respiratory system | B |
Question: What is the process where scientific articles are checked and analyzed by other scientists before publication?
Options:
A. peer review
B. embrace review
C. mechanism review
D. process review | A |
Question: A mutation is a random change in an organism's what?
Options:
A. structure
B. babies
C. genes
D. power | C |
Question: Synovial and ball-and-socket are both types of what?
Options:
A. bonds
B. cells
C. joints
D. muscles | C |
Question: Who invented dynamite in 1866?
Options:
A. Madame Curie
B. Albert Einstein
C. Louis Pasteur
D. alfred nobel | D |
Question: Most liquid freshwater is under the ground in layers of what?
Options:
A. forest
B. rock
C. soil
D. sand | B |
Question: What phenotype do gain-of-function mutations usually result in?
Options:
A. internal
B. submissive
C. dominant
D. external | C |
Question: What occurs if oxygen cannot be obtained at a sufficient rate?
Options:
A. hyperventilation
B. aerobic respiration
C. anaerobic respiration
D. malolactic respiration | C |
Question: What are the key to species evolving?
Options:
A. mutations
B. microbes
C. parasites
D. radiation | A |
Question: Cancer develops when what process is unregulated?
Options:
A. metabolism
B. cellular respiration
C. meiosis
D. cell division | D |
Question: What are needed to oxidize the noble gases to form compounds in positive oxidation states?
Options:
A. potent oxidants
B. protein oxidants
C. bacteria oxidants
D. metal oxidants | A |
Question: Which muscles raise the hyoid bone, the floor of the mouth, and the larynx during deglutition?
Options:
A. spicule
B. suprahyoid
C. Hybrid
D. spirogyra | B |
Question: What type of energy is stored in an object because of its position or shape?
Options:
A. kinetic
B. magnetic
C. mechanical
D. potential | D |
Question: Like plants, animals are multicellular what?
Options:
A. membranes
B. eukaryotes
C. isolates
D. prokaryotes | B |
Question: A doorknob and a ferris wheel are examples of what type of simple machine?
Options:
A. wheel and axle
B. lever and pulley
C. ball and socket
D. ball and axle | A |
Question: What do ocean mollusks use to absorb oxygen from the water?
Options:
A. shells
B. scales
C. gills
D. pores | C |
Question: What is paleobotany?
Options:
A. study of fresh plants
B. study of diseased plants
C. study of extinct plants
D. study of new plants | C |
Question: What happens to the level of relative humidity in the evening as air temperature declines?
Options:
A. nothing
B. it falls
C. it rises
D. it goes up and down | C |
Question: What term is used to describe a compound that does not conduct an electric current in either aqueous solution or in the molten state?
Options:
A. xerophyte
B. porous
C. kilocalorie
D. nonelectrolyte | D |
Question: Peregrine falcons made an incredible recovery after laws were passed banning the use of what?
Options:
A. miticide
B. Carbaryl
C. Acetamiprid
D. ddt | D |
Question: What pathway in a plant do water and nutrients travel through from the roots to the leaves?
Options:
A. skin
B. flowers
C. stem
D. bark | C |
Question: In the tropics what are the prevailing winds called?
Options:
A. a front
B. tradewinds
C. crosswinds
D. storm winds | B |
Question: How many chromosomes are in a diploid human cell?
Options:
A. 47
B. 46.63 chromosomes
C. 46 chromosomes
D. 41 | C |
Question: Motion of water molecules helps break up interactions between what?
Options:
A. enzymes and acids
B. acids and bases
C. ions or hormones
D. solid ions or molecules | D |
Question: Which cycle is named after the scientist melvin calvin?
Options:
A. calvin cycle
B. krebs cycle
C. melcal cycle
D. melvin cycle | A |
Question: What is formed when a subducting plate flows under another tectonic plate?
Options:
A. magma
B. volcanic arc
C. fault line
D. boundary plate | B |
Question: What force increases a slide downhill and decreases a slide uphill?
Options:
A. frictional
B. nuclear
C. gravity
D. tension | C |
Question: Lymphoma is a cancer of a type of what type of cells, called lymphocytes?
Options:
A. red blood cells
B. brain cells
C. white blood cells
D. lung cells | C |
Question: What type of eggs do fully terrestrial vertebrates carry?
Options:
A. aqueous
B. amniotic
C. epithelial
D. amphibious | B |
Question: What is the time since the beginning of the ice ages?
Options:
A. Paleolithic era
B. Jurassic period
C. Mesozoic epocH
D. quaternary period | D |
Question: What will the contraction of smooth muscles help organs do?
Options:
A. carry out functions
B. move joints
C. move across distances
D. fine motor movements | A |
Question: What is an acid that can be produced from the aerobic fermentation of wine?
Options:
A. orange juice
B. vinegar
C. soda
D. grape juice | B |
Question: Weathering is fundamental to the creation of what, which exists as a very thin layer over solid rock?
Options:
A. moss
B. fungus
C. aquifers
D. soil | D |
Question: What type of weathering causes the minerals in a rock to change?
Options:
A. natural
B. toxic
C. artificial
D. chemical | D |
Question: What is the process in which a liquid changes to a solid?
Options:
A. condensation
B. melting
C. freezing
D. boiling | C |
Question: By pulling out grass by its roots and over-grazing, livestock contribute to what negative process?
Options:
A. evolution
B. erosion
C. immigration
D. migration | B |
Question: What are the three types of isomers?
Options:
A. structural, cis-trans, enatiomers
B. structural , chromosome - trans , enatiomers
C. structural, Polypropylene , enatiomers
D. structural, cis-trans, Polystyrene | A |
Question: The chloroplasts contain a green pigment called what?
Options:
A. melanin
B. chlorophyll
C. sodium
D. chloroplasm | B |
Question: What state occurs when the amount of solute dissolved exceeds the solubility?
Options:
A. alkalinity
B. supersaturation
C. density
D. polymerisation | B |
Question: What occurs when spores from two parents fuse and form a zygospore?
Options:
A. asexual reproduction
B. sexual reproduction
C. internal reproduction
D. twins | B |
Question: Macrophages and dendritic cells are types of what"
Options:
A. phagocytic cells
B. mast cells
C. supercapacitor cells
D. amoena cells | A |
Question: What side of a mountain does the rainshadow effect occur on?
Options:
A. windward
B. the leeward side
C. due north
D. starboard | B |
Question: Centrioles are a very important part of what?
Options:
A. enterocytes
B. centricles
C. centrosomes
D. tubercles | C |
Question: What is the volume of the molecules of an ideal gas?
Options:
A. zero
B. two
C. three
D. one | A |
Question: What part of the body are eggs formed in?
Options:
A. brain
B. ovaries
C. pancreas
D. intestine | B |
Question: What is the first digestive organ that food enters?
Options:
A. intestine
B. mouth
C. kidneys
D. digestive system | B |
Question: Soda fizzes when what common gas comes out of solution?
Options:
A. helium
B. carbon monoxide
C. carbon dioxide
D. nitrous oxide | C |
Question: The voltage and current are exactly in phase in a what?
Options:
A. resistor
B. battery
C. capacitor
D. harmonic | A |
Question: Combining the voltages of the oxidation and reduction half reactions helps to determine what?
Options:
A. voltage
B. moisture
C. magnetic
D. slimy | A |
Question: What occurs when an unstable nucleus emits a beta particle and energy?
Options:
A. methane decay
B. nucleus decay
C. alpha decay
D. beta decay | D |
Question: A chemical property describes the ability of a substance to undergo a specific what?
Options:
A. liquid change
B. chemical change
C. weight Change
D. radiation change | B |
Question: When energy is captured or transformed, it inevitably degrades and becomes what less useful form of energy?
Options:
A. chemical
B. motion
C. heat
D. temperature | C |
Question: The periodic table is one of the cornerstones of chemistry because it organizes all the known elements on the basis of their what?
Options:
A. chemical properties
B. acid properties
C. liquid properties
D. size properties | A |
Question: What organs filter wastes from blood so they can be excreted from the body?
Options:
A. lungs
B. liver
C. kidneys
D. pancreas | C |
Question: The tidal forces near what celestial phenomena are so great they can actually tear matter from a companion star?
Options:
A. large holes
B. dwarf star
C. wormholes
D. black holes | D |
Question: What are female gonads normally called?
Options:
A. ovaries
B. testes
C. glands
D. tubules | A |
Question: Starch and glycogen, as well as simple sugars like glucose and fructose, can all be categorized broadly as what?
Options:
A. acids
B. impurities
C. carbohydrates
D. vegetables | C |
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