prompt stringlengths 51 646 | completion stringclasses 8
values |
|---|---|
What is the branch of science that studies the physical world?
A. social science
B. Ecology
C. botany
D. physics
Answer: | D |
Osteoclasts break down bone to maintain mineral what?
A. homeostatis
B. polarity
C. fluctuations
D. density
Answer: | A |
Which carbohydrates can be classified in terms of chain length?
A. complex
B. binary
C. simple
D. atomic
Answer: | C |
What is altered by changes in cardiac output by variable contriction of the arterioles?
A. blood pressure
B. pulse
C. blood type
D. heart rhythm
Answer: | A |
Eukaryotic cells are cells that contain what?
A. a nucleus
B. pathogens
C. energy
D. inorganic matter
Answer: | A |
What distinctive dna shape forms when the two nucleotide chains wrap around the same axis?
A. double spiral
B. double helix
C. single spiral
D. chain helix
Answer: | B |
The oxygen regions of the water molecules have what kind of charge?
A. certain
B. positive
C. negative
D. neutral
Answer: | C |
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?
A. tumors and fungi
B. bacteria and fungi
C. bacteria and tumors
D. molecules and fungi
Answer: | B |
Millipedes and centipedes are the most commonly found examples of what group of arthropods?
A. protists myriapoda
B. Disperse Myriapoda
C. unicellular myriapoda
D. subphylum myriapoda
Answer: | D |
Glass breaking is an example of what type of change that doesn't affect the makeup of matter?
A. chemical
B. reversible
C. physical
D. thermal
Answer: | C |
Aldehydes, ketones, carboxylic acids, esters, and ethers all have functional groups containing what element?
A. silicon
B. oxygen
C. methane
D. carbon
Answer: | B |
What forms when an atom gains electrons?
A. cations
B. crystals
C. anions
D. bonds
Answer: | C |
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?
A. stibnite soils
B. sandy soils
C. hydric soils
D. niya soils
Answer: | C |
What element is typically used to shield things from gamma rays?
A. aluminum
B. silver
C. lead
D. gold
Answer: | C |
What is the combination of tissues that provides a tough, woody external covering on the stems of trees called?
A. epidermis
B. bark
C. cuticle
D. scale
Answer: | B |
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?
A. substrate
B. isolation
C. colonies
D. water
Answer: | B |
Examples of acute forms of what type of diseases include the common cold and influenza?
A. viral diseases
B. attributable diseases
C. bacterial diseases
D. inherited diseases
Answer: | A |
What do red blood cells carry?
A. oxygen
B. carbon dioxide
C. nitrogen
D. hydrogen
Answer: | A |
The sympathetic division of the vertebrate autonomic nervous system has evolved the fight-or-flight response to counter stress-induced disruptions of this?
A. body temperature
B. equilibrium
C. homeostasis
D. blood pressure
Answer: | C |
What light-producing process occurs when a substance absorbs shorter-wavelength ultraviolet light and then gives off the energy as visible light?
A. candescence
B. resistance
C. luminescence
D. fluorescence
Answer: | D |
What lies between the continental shelf and the abyssal plain?
A. continental belt
B. continental slope
C. successive slope
D. equator
Answer: | B |
In the first beaker, distilled water does not conduct a current because water is a what?
A. pure element
B. magnetic compound
C. solute
D. molecular compound
Answer: | D |
What is another term for hydraulic fracturing?
A. permeating
B. erupting
C. fracking
D. drilling
Answer: | C |
In what unit is speed usually measured?
A. radians
B. calories
C. Celcius
D. miles per hour
Answer: | D |
Unlike liver bile, 'juice' produced by what organ is clear and composed mostly of water along with some salts, sodium bicarbonate, and digestive enzymes?
A. gallbladder
B. pancreas
C. stomach
D. spleen
Answer: | B |
What term means opposition to the flow of electric charges that occurs when electric current travels through matter?
A. antagonism
B. diffusion
C. resistance
D. polarity
Answer: | C |
According to law, what must packaged foods carry?
A. country of origin
B. nutrition facts label
C. warnings
D. pricing
Answer: | B |
What type of terminal releases neurotransmitters at a synapse?
A. secretion
B. acetylcholine,
C. axon
D. chloride
Answer: | C |
What chemical affects the onset of puberty and duration?
A. enzymes
B. hormones
C. steroids
D. acids
Answer: | B |
What are the only plants with a life cycle in which the gametophyte generation is dominant?
A. vascular plants
B. nonvascular
C. nonpermeable
D. photoreactive
Answer: | B |
What do angiosperms produce?
A. needles
B. flowers and fruit
C. leaves
D. scales
Answer: | B |
What should you let liquid waste do before placing the container in the trash?
A. generate
B. evaporate
C. expand
D. melt
Answer: | B |
Mammoths, close genetic relatives of modern elephants, are believed to have gone extinct due to hunting by humans and what factor?
A. earthquakes
B. migration change
C. climate change
D. volcanic eruptions
Answer: | C |
What is the ph level of neutral, pure water?
A. six
B. seven
C. five
D. six and a half
Answer: | B |
Which organ system defends the body from pathogens and other causes of disease?
A. nervous system
B. respiratory system
C. immune system
D. digestion system
Answer: | C |
What is the process where scientific articles are checked and analyzed by other scientists before publication?
A. embrace review
B. mechanism review
C. peer review
D. process review
Answer: | C |
A mutation is a random change in an organism's what?
A. structure
B. babies
C. genes
D. power
Answer: | C |
Synovial and ball-and-socket are both types of what?
A. bonds
B. cells
C. muscles
D. joints
Answer: | D |
Who invented dynamite in 1866?
A. Madame Curie
B. Albert Einstein
C. Louis Pasteur
D. alfred nobel
Answer: | D |
Most liquid freshwater is under the ground in layers of what?
A. sand
B. soil
C. forest
D. rock
Answer: | D |
What phenotype do gain-of-function mutations usually result in?
A. external
B. submissive
C. internal
D. dominant
Answer: | D |
What occurs if oxygen cannot be obtained at a sufficient rate?
A. hyperventilation
B. malolactic respiration
C. aerobic respiration
D. anaerobic respiration
Answer: | D |
What are the key to species evolving?
A. mutations
B. microbes
C. radiation
D. parasites
Answer: | A |
Cancer develops when what process is unregulated?
A. metabolism
B. cellular respiration
C. meiosis
D. cell division
Answer: | D |
What are needed to oxidize the noble gases to form compounds in positive oxidation states?
A. metal oxidants
B. protein oxidants
C. potent oxidants
D. bacteria oxidants
Answer: | C |
Which muscles raise the hyoid bone, the floor of the mouth, and the larynx during deglutition?
A. spirogyra
B. suprahyoid
C. Hybrid
D. spicule
Answer: | B |
What type of energy is stored in an object because of its position or shape?
A. potential
B. mechanical
C. kinetic
D. magnetic
Answer: | A |
Like plants, animals are multicellular what?
A. eukaryotes
B. membranes
C. isolates
D. prokaryotes
Answer: | A |
A doorknob and a ferris wheel are examples of what type of simple machine?
A. ball and axle
B. lever and pulley
C. ball and socket
D. wheel and axle
Answer: | D |
What do ocean mollusks use to absorb oxygen from the water?
A. shells
B. gills
C. pores
D. scales
Answer: | B |
What is paleobotany?
A. study of diseased plants
B. study of extinct plants
C. study of fresh plants
D. study of new plants
Answer: | B |
What happens to the level of relative humidity in the evening as air temperature declines?
A. it rises
B. it goes up and down
C. nothing
D. it falls
Answer: | A |
What term is used to describe a compound that does not conduct an electric current in either aqueous solution or in the molten state?
A. nonelectrolyte
B. xerophyte
C. porous
D. kilocalorie
Answer: | A |
Peregrine falcons made an incredible recovery after laws were passed banning the use of what?
A. ddt
B. miticide
C. Carbaryl
D. Acetamiprid
Answer: | A |
What pathway in a plant do water and nutrients travel through from the roots to the leaves?
A. skin
B. flowers
C. stem
D. bark
Answer: | C |
In the tropics what are the prevailing winds called?
A. tradewinds
B. storm winds
C. crosswinds
D. a front
Answer: | A |
How many chromosomes are in a diploid human cell?
A. 47
B. 46.63 chromosomes
C. 46 chromosomes
D. 41
Answer: | C |
Motion of water molecules helps break up interactions between what?
A. enzymes and acids
B. ions or hormones
C. acids and bases
D. solid ions or molecules
Answer: | D |
Which cycle is named after the scientist melvin calvin?
A. krebs cycle
B. calvin cycle
C. melvin cycle
D. melcal cycle
Answer: | B |
What is formed when a subducting plate flows under another tectonic plate?
A. boundary plate
B. volcanic arc
C. magma
D. fault line
Answer: | B |
What force increases a slide downhill and decreases a slide uphill?
A. nuclear
B. tension
C. gravity
D. frictional
Answer: | C |
Lymphoma is a cancer of a type of what type of cells, called lymphocytes?
A. red blood cells
B. brain cells
C. lung cells
D. white blood cells
Answer: | D |
What type of eggs do fully terrestrial vertebrates carry?
A. epithelial
B. amniotic
C. aqueous
D. amphibious
Answer: | B |
What is the time since the beginning of the ice ages?
A. Mesozoic epocH
B. Jurassic period
C. quaternary period
D. Paleolithic era
Answer: | C |
What will the contraction of smooth muscles help organs do?
A. move across distances
B. move joints
C. carry out functions
D. fine motor movements
Answer: | C |
What is an acid that can be produced from the aerobic fermentation of wine?
A. orange juice
B. grape juice
C. vinegar
D. soda
Answer: | C |
Weathering is fundamental to the creation of what, which exists as a very thin layer over solid rock?
A. aquifers
B. fungus
C. moss
D. soil
Answer: | D |
What type of weathering causes the minerals in a rock to change?
A. artificial
B. natural
C. chemical
D. toxic
Answer: | C |
What is the process in which a liquid changes to a solid?
A. boiling
B. condensation
C. freezing
D. melting
Answer: | C |
By pulling out grass by its roots and over-grazing, livestock contribute to what negative process?
A. evolution
B. immigration
C. erosion
D. migration
Answer: | C |
What are the three types of isomers?
A. structural, cis-trans, enatiomers
B. structural, Polypropylene , enatiomers
C. structural , chromosome - trans , enatiomers
D. structural, cis-trans, Polystyrene
Answer: | A |
The chloroplasts contain a green pigment called what?
A. sodium
B. chlorophyll
C. chloroplasm
D. melanin
Answer: | B |
What state occurs when the amount of solute dissolved exceeds the solubility?
A. polymerisation
B. supersaturation
C. alkalinity
D. density
Answer: | B |
What occurs when spores from two parents fuse and form a zygospore?
A. asexual reproduction
B. twins
C. sexual reproduction
D. internal reproduction
Answer: | C |
Macrophages and dendritic cells are types of what"
A. mast cells
B. amoena cells
C. supercapacitor cells
D. phagocytic cells
Answer: | D |
What side of a mountain does the rainshadow effect occur on?
A. starboard
B. due north
C. the leeward side
D. windward
Answer: | C |
Centrioles are a very important part of what?
A. enterocytes
B. centrosomes
C. centricles
D. tubercles
Answer: | B |
What is the volume of the molecules of an ideal gas?
A. one
B. three
C. zero
D. two
Answer: | C |
What part of the body are eggs formed in?
A. intestine
B. ovaries
C. pancreas
D. brain
Answer: | B |
What is the first digestive organ that food enters?
A. mouth
B. intestine
C. kidneys
D. digestive system
Answer: | A |
Soda fizzes when what common gas comes out of solution?
A. carbon monoxide
B. helium
C. carbon dioxide
D. nitrous oxide
Answer: | C |
The voltage and current are exactly in phase in a what?
A. battery
B. capacitor
C. harmonic
D. resistor
Answer: | D |
Combining the voltages of the oxidation and reduction half reactions helps to determine what?
A. magnetic
B. moisture
C. slimy
D. voltage
Answer: | D |
What occurs when an unstable nucleus emits a beta particle and energy?
A. alpha decay
B. methane decay
C. nucleus decay
D. beta decay
Answer: | D |
A chemical property describes the ability of a substance to undergo a specific what?
A. chemical change
B. weight Change
C. liquid change
D. radiation change
Answer: | A |
When energy is captured or transformed, it inevitably degrades and becomes what less useful form of energy?
A. temperature
B. heat
C. chemical
D. motion
Answer: | B |
The periodic table is one of the cornerstones of chemistry because it organizes all the known elements on the basis of their what?
A. chemical properties
B. size properties
C. liquid properties
D. acid properties
Answer: | A |
What organs filter wastes from blood so they can be excreted from the body?
A. pancreas
B. liver
C. kidneys
D. lungs
Answer: | C |
The tidal forces near what celestial phenomena are so great they can actually tear matter from a companion star?
A. black holes
B. dwarf star
C. wormholes
D. large holes
Answer: | A |
What are female gonads normally called?
A. testes
B. glands
C. ovaries
D. tubules
Answer: | C |
Starch and glycogen, as well as simple sugars like glucose and fructose, can all be categorized broadly as what?
A. vegetables
B. carbohydrates
C. impurities
D. acids
Answer: | B |
Lipids are biochemical compounds such as fats and?
A. salts
B. minerals
C. oils
D. vegetables
Answer: | C |
What is the process of small molecules passing through the plasma membrane called?
A. convection
B. permeation
C. absorption
D. diffusion
Answer: | D |
What change the physical properties of solvents?
A. solutes
B. chemical reactions
C. cells
D. molecules
Answer: | A |
Which human body system is a complex network of nervous tissue that carries electrical messages throughout the body?
A. the localized system
B. the lymph system
C. the nervous system
D. the bacterial system
Answer: | C |
What is a sheet of muscle that spreads across the bottom of the rib cage?
A. diagram
B. thorax
C. diaphragm
D. cartilage
Answer: | C |
What creates charged regions in a water molecule?
A. polar covalent bonds
B. noncovalent bonds
C. ionic bonds
D. nonpolar bonds
Answer: | A |
Phosphorus exists as several allotropes, the most common being red, black, and what?
A. green phosphorus
B. yellow phosphorous
C. white phosphorus
D. purple phosphorus
Answer: | C |
What is the term for environmental causes of mutations?
A. carcinogens
B. mutagens
C. catalysts
D. pollutants
Answer: | B |
How are classic sedimentary rocks group?
A. particle depth
B. density
C. size of sediment
D. color
Answer: | C |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.