question stringlengths 68 502 | answer stringclasses 4
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Question: Enzymes are a type of what, and as such, they are not reactants in the reactions they control?
Options:
A. neurotransmitter
B. hormone
C. metabolite
D. catalyst | D |
Question: The entire volume of what is filtered through the kidneys about 300 times per day?
Options:
A. blood
B. urine
C. saliva
D. gastric juice | A |
Question: The elements in group 2 are called what?
Options:
A. halogens
B. alkaline earth metals
C. metal alloys
D. noble gases | B |
Question: What term decribes the amount of time required for half of the original material to decay in an isotope?
Options:
A. life cycle
B. Geiger count
C. radioactive isotope
D. half-life | D |
Question: What occurs when water lost by transpiration is not replaced by absorbtion from room?
Options:
A. perspiration
B. shedding
C. rotting
D. wilting | D |
Question: Molds, pollen, and pet dander are examples of air pollution with what type of source?
Options:
A. ecological
B. biological
C. chemical
D. physical | B |
Question: Neurons are classified based on the direction in which they carry what?
Options:
A. nerve impulses
B. energy
C. neurotransmitters
D. metabolism impulses | A |
Question: What is the process of making an observation in terms of a numerical scale and recording the value?
Options:
A. ambient
B. graduation
C. measurement
D. respiration | C |
Question: What makes monotremes different than other mammals?
Options:
A. they spawn
B. they lay eggs
C. they lack backbones
D. they reproduce asexually | B |
Question: The strength of bases is measured on what scale?
Options:
A. acid test
B. ph scale
C. litmus test
D. pneumatic scale | B |
Question: What type of isomers contain the same number of atoms of each kind but differ in which atoms are bonded to one another?
Options:
A. structural isomers
B. different isomers
C. constitutional isomers
D. unique isomers | A |
Question: What is the gas that gives rotten eggs and sewage their distinctive smell?
Options:
A. hydrogen peroxide
B. calcium sulfide
C. hydrogen sulfide
D. methane | C |
Question: What two values does a blood pressure reading include?
Options:
A. cholesterol and systolic
B. high and low
C. systolic and diastolic
D. biotic and abiotic | C |
Question: In humans, what period lasts from the ninth week of development until birth?
Options:
A. plasma period
B. fetal period
C. development period
D. third trimester | B |
Question: Where are protons found in the atom?
Options:
A. in the nucleus
B. within electrons
C. outside the nucleus
D. in the orbital | A |
Question: What is produced when haploid gametes fuse in sexual reproduction?
Options:
A. diploid zygote
B. deformity
C. cell cluster
D. isolated zygote | A |
Question: What are the two different types of vascular tissues called?
Options:
A. acid and base
B. biotic and abiotic
C. epidermis and dermis
D. xylem and phloem | D |
Question: During which stage of development do all the major organs begin to form?
Options:
A. embryonic
B. nascent
C. transgenic
D. third trimester | A |
Question: At the anode, liquid chloride ions are oxidized to what?
Options:
A. nitrogen gas
B. chlorine gas
C. Heavy Gas
D. elemental gas | B |
Question: A diploid cell contains two sets of what?
Options:
A. atoms
B. ribosomes
C. chromosomes
D. neutrons | C |
Question: On what basis are lipoproteins classified?
Options:
A. density
B. weight
C. diameter
D. mass | A |
Question: The two ovaries are small, oval organs on either side of what part of the body?
Options:
A. uterus
B. heart
C. pancreas
D. lungs | A |
Question: Gas exchange during respiration occurs primarily through what?
Options:
A. activation
B. secretion
C. vaporization
D. diffusion | D |
Question: Enzymes in the stomach and small intestine break down proteins into what components?
Options:
A. amino acids
B. antioxidants
C. atoms
D. lactic acids | A |
Question: Organisms incapable of photosynthesis that must therefore obtain energy and carbon from food by consuming other organisms are called what?
Options:
A. photoautotrophs
B. heterotrophs
C. autotrophs
D. chemoautotrophs | B |
Question: What allows theories to be widely accepted?
Options:
A. evidence
B. observation
C. hypothesis
D. theory | A |
Question: Elements that specifically are noted to have properties of both metals and nonmetals are known as what?
Options:
A. alloys
B. alkali metals
C. metalloids
D. compund metals | C |
Question: What is the measure of change in velocity of a moving object?
Options:
A. acceleration
B. kinetic energy
C. vibration
D. transmission | A |
Question: What celestial events are the source of elements heavier than iron?
Options:
A. supernovas
B. galaxies
C. Space
D. neutrons | A |
Question: Algae are similar to plants in that they both produce their food through what process?
Options:
A. photosynthesis
B. cell division
C. hydrolysis
D. mitosis | A |
Question: What do fungi produce to digest nutrients?
Options:
A. sporozoans
B. pores
C. exoenzymes
D. amino | C |
Question: When light passes from one medium to another, it changes what?
Options:
A. density
B. color
C. speed
D. temperature | C |
Question: The distance between the crests of electromagnetic waves is called what?
Options:
A. crest
B. trough
C. variation
D. wavelength | D |
Question: People with celiac disease have an immune response to what, which ultimately leads to malnutrition, cramping, and diarrhea?
Options:
A. fish
B. gluten
C. lactose
D. seeds | B |
Question: Chlorophyll is used in what food-making process that plants carry out?
Options:
A. digestion
B. colorization
C. isolation
D. photosynthesis | D |
Question: What does an ammeter measure the flow of?
Options:
A. water under pressure
B. current through a circuit
C. magnetic fields
D. wind | B |
Question: Burning forests, growing rice and raising livestock all cause a release of what into the atmosphere?
Options:
A. glucose gases
B. greenhouse gases
C. oxide gases
D. carbonate gases | B |
Question: What type of pollution comes from sewage, storm drains, septic tanks, boats, and runoff from yards?
Options:
A. social
B. urban
C. municipal
D. collective | C |
Question: What does oil do when mixed with water?
Options:
A. forms droplets
B. dissappears
C. dissolves
D. precipitates | A |
Question: What is the term for the movement of individuals out of a population?
Options:
A. succession
B. immigration
C. colonization
D. emigration | D |
Question: What might a scientist do to confirm the work of another?
Options:
A. replicate their work
B. develop a completely different experiment
C. question their methods
D. study their work | A |
Question: Polar molecules result from differences in electronegativity of what in the molecule?
Options:
A. ions
B. protons
C. atoms
D. iron | C |
Question: A diver's air bubbles increase in size as he approaches the surface because what decreases?
Options:
A. water weight
B. water direction
C. water pressure
D. water energy | C |
Question: Positive charge is mostly found in what part of an atom?
Options:
A. neutrons
B. ions
C. nucleus
D. electron shell | C |
Question: In the lens makers' equation, diverging lenses and virtual images are associated with what kinds of numbers?
Options:
A. negative numbers
B. positive numbers
C. fractional numbers
D. variable numbers | A |
Question: What is another name for producers?
Options:
A. rotifers
B. autotrophs
C. plants
D. allergens | B |
Question: Consisting of a stigma, style, and ovary, the pistil of a flower is what type of organ?
Options:
A. female immune organ
B. female respiratory organ
C. female neural organ
D. female reproductive organ | D |
Question: Chewing insects such as dragonflies and grasshoppers have how many sets of jaws?
Options:
A. one
B. two
C. three
D. four | B |
Question: What kind of change occurs whenever matter changes into an entirely different substance with different chemical properties?
Options:
A. reversible change
B. physical change
C. chemical change
D. carbon change | C |
Question: What is a small, relatively simple single-celled organism called?
Options:
A. prokaryote
B. ribosome
C. amoeba
D. eukaryote | A |
Question: The golgi apparatus works like a mail room by receiving and sending what?
Options:
A. proteins
B. particles
C. enzymes
D. acids | A |
Question: Which part of the body has mucus and hair to trap dust and also warms and moistens air so to not harm lung tissue?
Options:
A. the nose
B. the throat
C. the tongue
D. the ear | A |
Question: What are the structures in the cytoplasm where proteins are made?
Options:
A. chromosomes
B. ribosomes
C. nucleus
D. prokaryotes | B |
Question: What is the key issue in the small-population approach?
Options:
A. disease variation
B. genetic variation
C. genetic mutation
D. alternative variation | B |
Question: What is the minimum depth in the aphotic zone?
Options:
A. 450 meters
B. 200 meters
C. 150 meters
D. 10 meters | B |
Question: What is the process by which plants gain energy and produce sugar?
Options:
A. respiration
B. chemosynthesis
C. photosynthesis
D. glycolysis | C |
Question: What are embedded in the membranes of b cells and bind a variety of antigens through their variable regions?
Options:
A. b.a.p cell receptors
B. b cell receptors
C. a.m. cell receptors
D. er cell receptors | B |
Question: A statement that describes what always happens under certain conditions in nature is also known as what?
Options:
A. theory
B. scientific motion
C. hypothesis
D. scientific law | D |
Question: What developmental stage do alligators lack that most other amphibians have?
Options:
A. Tadpole stage
B. Egg Stage
C. larval stage
D. metamorphosis | C |
Question: What attaches a muscle to a bone?
Options:
A. arteries
B. tendons
C. marrow
D. veins | B |
Question: What are two common weather characteristics of hurricanes?
Options:
A. high winds and rainfall
B. high winds and snowfall
C. small winds and rainfall
D. low winds and sandstorms | A |
Question: What kind of organism causes the often fatal lung disease tuberculosis?
Options:
A. virus
B. pathogens
C. bacteria
D. algae | C |
Question: Where do plates move apart in oceans and on land?
Options:
A. divergent plate boundaries
B. volcanic ridges
C. unsettled plate boundaries
D. coastal zones | A |
Question: Zeros that appear in front of all of the nonzero digits are called what?
Options:
A. zero sum game
B. left-end zeros
C. significant digits
D. non-numbers | B |
Question: What consists of thylakoid membranes surrounded by stroma?
Options:
A. a photon
B. a chloroplast
C. a nucleus
D. a stem | B |
Question: Portable amplifiers have batteries that store what type of energy?
Options:
A. chemical energy
B. kinetic energy
C. carbon energy
D. mechanical energy | A |
Question: The movement of ice causes glaciers to have cracks referred to as?
Options:
A. fissures
B. anomalies
C. slides
D. crevasses | D |
Question: A muscle can return to its original length when relaxed due to a quality of muscle tissue called what?
Options:
A. moisture
B. elasticity
C. reach
D. viscosity | B |
Question: What feature of the spine helps with flexibility and strength?
Options:
A. arrangement
B. curves
C. angle
D. shape | B |
Question: How does a cell's membrane keep extracellular materials from mixing with it's internal components?
Options:
A. provides a barrier
B. absorbs extracellular materials
C. repels extracellular materials
D. destroys extracellular materials | A |
Question: Respiratory development in the embryo begins around week 4. ectodermal tissue from the anterior head region invaginates posteriorly to form olfactory pits, which fuse with endodermal tissue of the developing pharynx. an olfactory pit is one of a pair of structures that will enlarge to become this?
Options:
A.... | A |
Question: Anything that occupies space and has mass is known as what?
Options:
A. solid
B. opaque
C. matter
D. dense | C |
Question: The temperature dependence of solubility can be exploited to prepare what solutions of certain compounds?
Options:
A. instantiated
B. isolated
C. supersaturated
D. mineralized | C |
Question: Glasses are mixtures of oxides, the main component of which is silica (sio2). silica is called the glass former, while additives are referred to as this?
Options:
A. natural modifiers
B. glass actors
C. glass modifiers
D. addition modifiers | C |
Question: What type of tissue produces and secretes several hormones involved in lipid metabolism and storage?
Options:
A. hormonal tissue
B. metabolism tissue
C. somatic tissue
D. adipose tissue | D |
Question: What is the process in which organ systems work to maintain a stable internal environment?
Options:
A. organ balance
B. ketosis
C. homeostasis
D. homogeneity | C |
Question: What must people with type 1 and type 2 diabetes frequently check?
Options:
A. blood density levels
B. blood glucose levels
C. blood plasma levels
D. muscle glucose levels | B |
Question: What is it called when two alleles are both expressed in the heterozygous individual?
Options:
A. shared dominance
B. codominance
C. low dominance
D. weak dominance | B |
Question: What part of a spider is equipped with poison glands?
Options:
A. chelicerae
B. baleen
C. pedipalps
D. vacuole | A |
Question: Esters are neutral compounds that undergo what process, which is a reaction with water?
Options:
A. cellular respiration
B. osmosis
C. hydrolysis
D. replication | C |
Question: Evolution occurs because of changes in what over time?
Options:
A. genomes
B. alleles
C. atoms
D. mitochondria | B |
Question: When does coal release most of its energy?
Options:
A. when falling
B. when burning
C. when compressed
D. when forming | B |
Question: What was once believed to be the smallest of all particles, as dalton's theory proposed?
Options:
A. nucleus
B. molecule
C. atom
D. neutron | C |
Question: The actinides are all what type of elements?
Options:
A. large
B. radioactive
C. nuclear
D. multiple | B |
Question: What type of feeders are sea lilies and feather stars?
Options:
A. suspension feeders
B. deposit feeder
C. silt feeders
D. bottom feeder | A |
Question: What are the proteins called that speed up biochemical reactions in cells?
Options:
A. hormones
B. enzymes
C. peptides
D. carbohydrates | B |
Question: What isotope of carbon is typically used to date ancient items?
Options:
A. carbon 12
B. carbon 14
C. nitrogen 14
D. uranium 14 | B |
Question: What two planets is the asteroid belt found between?
Options:
A. Jupiter and Earth
B. Jupiter and Saturn
C. mars and jupiter
D. Mars and Earth | C |
Question: When wood is burned what kind of energy allows the wood to burn?
Options:
A. carbon
B. radiation
C. physical
D. chemical | D |
Question: The cubic crystal system is composed of how many different types of unit cells?
Options:
A. four
B. three
C. one
D. five | B |
Question: In which solution is the amount of dissolved material equal both inside and outside of the cell?
Options:
A. hypotonic
B. isotonic
C. supersaturated
D. exothermic | B |
Question: What element is the most common element in the universe?
Options:
A. carbon
B. helium
C. hydrogen
D. nitrogen | C |
Question: What is the term for anything that has mass and volume?
Options:
A. matter
B. energy
C. gass
D. liquid | A |
Question: What is in danger of happening when thick magma is formed?
Options:
A. focused eruptions
B. explosive eruptions
C. continuous eruptions
D. earthquakes | B |
Question: The important equation pv = nrt holds true for substances in what state of matter?
Options:
A. gas
B. products
C. solids
D. liquids | A |
Question: The measurement of the extent of something along its greatest dimension is its what?
Options:
A. length
B. depth
C. portion
D. stretch | A |
Question: What force explains why objects may float in water?
Options:
A. gravity force
B. buoyant force
C. warm force
D. cool force | B |
Question: Which organelle is made up of 5 to eight cup shaped, membrane covered stacks of discs known as cisternae?
Options:
A. nucleus
B. endoplasmic reticulum
C. vacuole
D. golgi apparatus | D |
Question: How many bones does the mammalian middle ear have?
Options:
A. twelve
B. three
C. four
D. two | B |
Question: What can echinoderms sense with their simple eyes?
Options:
A. colors
B. shapes
C. electricity
D. light | D |
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