question stringlengths 68 502 | answer stringclasses 4
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Question: What is the name of the hollow nerve cord along the back of chordates?
Options:
A. mesoderm
B. phloem
C. notochord
D. zetacord | C |
Question: What term is used to describe the amount of space occupied by a sample of matter?
Options:
A. mass
B. liquid
C. growth
D. volume | D |
Question: What are responsible for the bending movements of the organelle?
Options:
A. muscles
B. sporozoans
C. pores
D. dyneins | D |
Question: What are formed when primary pollutants interact with sunlight, air, or each other?
Options:
A. cross pollutants
B. secondary pollutants
C. secondary contaminants
D. typical pollutants | B |
Question: The first reaction of the body to tissue damage or infection is called the what response?
Options:
A. defensive
B. retaliatory
C. harmful
D. inflammatory | D |
Question: Because these components of the endocrine system are transported via blood, they get diluted and are present in low concentrations when they act on their target cells.
Options:
A. hormones
B. antibodies
C. enzymes
D. minerals | A |
Question: Which theory explains how populations of organisms can change over time?
Options:
A. free by natural selection
B. changes by natural selection
C. intelligent selection
D. evolution by natural selection | D |
Question: What forms when the dna in the nucleus wraps around proteins?
Options:
A. rna
B. chromosomes
C. ribosomes
D. genes | B |
Question: What is the condition called where pimples form on the skin?
Options:
A. acne
B. cramping
C. blushing
D. dermatitis | A |
Question: Whose laws of motion are the foundation of dynamics?
Options:
A. bell
B. newton
C. einstein
D. aristotle | B |
Question: Mutualism is a symbiotic relationship in which both species do what?
Options:
A. die
B. reproduce
C. suffer
D. benefit | D |
Question: What do you call a substance that cannot be broken down to other substances by chemical reactions.?
Options:
A. an element
B. a compound
C. a molecule
D. a participate | A |
Question: What weather term describes what the temperature feels like when the wind is taken into account?
Options:
A. humidity
B. freezing point
C. windchill
D. windshield | C |
Question: What device uses electromagnetic induction to change the voltage of electric current?
Options:
A. electric combustion
B. electric conductor
C. convection device
D. electric transformer | D |
Question: What layer of soil usually does not have very small particles like clay?
Options:
A. topsoil
B. undersoil
C. silt
D. sediment | A |
Question: Which type of glaciers form in high mountains and travel through valleys?
Options:
A. alpine glaciers
B. rocky glaciers
C. altitude glaciers
D. seaside glaciers | A |
Question: What two types of junctions do animal cells have?
Options:
A. standard and specialized
B. tight and gap
C. gap and solid
D. loose and tight | B |
Question: Where does digestion take place within an incomplete digestive system?
Options:
A. abdomen
B. gastrovascular cavity
C. central nervous system
D. lumbar region | B |
Question: Natural selection cannot create new variations in organisms - these new variations must be created by what, which are usually associated with some sort of abnormality?
Options:
A. infection
B. pollution
C. mutation
D. radiation | C |
Question: Gene expression is regulated primarily at the what level?
Options:
A. translational
B. transcriptional
C. manufacturing
D. binding | B |
Question: What nullified the idea that all biological catalysts are proteins?
Options:
A. discovery of enzymes
B. discovery of metabolites
C. discovery of ribozymes
D. amino acid theory | C |
Question: A tadpole turns into what land mammal?
Options:
A. A tortoise.
B. a pod
C. a frog
D. a morph | C |
Question: In physics, what do you call devices that make work easier?
Options:
A. levers
B. tools
C. circuits
D. machines | D |
Question: Mars appears red because of large amounts of which element in the soil?
Options:
A. mercury
B. coal
C. carbon
D. iron | D |
Question: What type of rocks are laid down horizontally with the oldest at the bottom?
Options:
A. crystalline
B. metamorphic
C. sedimentary
D. igneous | C |
Question: What are two types of frozen percipitation?
Options:
A. rain and hail
B. icycles and icebergs
C. ice and frost
D. snow and hail | D |
Question: The bond between the two nitrogen atoms is a what?
Options:
A. single bond
B. quadruple bond
C. triple bond
D. double bond | C |
Question: What are the two most common silicates?
Options:
A. Analcime and Feldspar
B. Petalite and Analcime
C. Petalite and Quartz
D. feldspar and quartz | D |
Question: Starch is a large, complex carbohydrate made of thousands of _____ joined together?
Options:
A. glucose units (monomers)
B. glucose divisions ( monomers )
C. glucose orders ( monomers )
D. glucose partitions ( monomers ) | A |
Question: Newly duplicated chromosomes are divided into two daughter nuclei during what stage?
Options:
A. meiosis
B. prophase
C. symphysis
D. mitosis | D |
Question: As an erythrocyte matures in the red bone marrow, it extrudes its nucleus and most of its other what?
Options:
A. energy
B. moisture
C. electrons
D. organelles | D |
Question: What is the tube-like device used to reliably measure lower levels of radiation?
Options:
A. MRI machine
B. geiger counter
C. weber counter
D. Richter scale | B |
Question: The conducting zone of the respiratory system includes the organs and structures not directly involved in what?
Options:
A. gas exchange
B. gold exchange
C. helium exchange
D. copper exchange | A |
Question: Aflatoxins are toxic, carcinogenic compounds released by fungi of this?
Options:
A. genus sporozoa
B. arthropod class
C. protist group
D. genus aspergillus | D |
Question: Four haploid spermatids form during meiosis from what?
Options:
A. the ova
B. the primary spermatocyte
C. the sister chromatic
D. the zygote | B |
Question: Like people with type 1 diabetes, people with type 2 diabetes must frequently check what level?
Options:
A. heartbeat
B. blood sugar
C. pulse
D. glucose | B |
Question: Many species in rhizaria are among the organisms referred to as what?
Options:
A. protozoa
B. prokaryotes
C. fungi
D. amoebas | D |
Question: What is the amount actually produced in a reaction called?
Options:
A. actual yield
B. minimum yield
C. individual yield
D. maximum yield | A |
Question: Each group of organisms went through its own evolutionary journey, called what?
Options:
A. anomalous
B. superfamily
C. zoology
D. phylogeny | D |
Question: What term refers to the emission of material or energy from an atom's nucleus?
Options:
A. stasis
B. microscopic
C. radioactivity
D. smog | C |
Question: Which feature in maps allows users to make corrections between magnetic north and true north?
Options:
A. inset
B. key
C. double compass rose
D. scale | C |
Question: What is the term for the maintenance of a steady state despite internal and external changes?
Options:
A. hypothesis
B. homeostasis
C. equilibrium
D. consciousness | B |
Question: Any structure inside a cell that is enclosed by a membrane is called?
Options:
A. an article
B. an enclave
C. an organelle
D. a particle | C |
Question: The earliest vertebrates were jawless what?
Options:
A. mammals
B. fish
C. dinosaurs
D. reptiles | B |
Question: In which kind of water can less carbon dioxide dissolve?
Options:
A. warm water
B. salt water
C. cool water
D. tap water | A |
Question: The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called what?
Options:
A. brain cells
B. sperm cells
C. hair cells
D. red cells | C |
Question: What is an electrically neutral compound with positive and negative ions?
Options:
A. isotope
B. neutralized molecule
C. correlated compound
D. ionic compound | D |
Question: Which direction does the sun, moon, and stars appear to travel?
Options:
A. north to south
B. east to west
C. west to east
D. south to north | B |
Question: Sulfate is used as a cleaning agent because it is acidic and soluble in what substance?
Options:
A. oxygen
B. water
C. salt
D. air | B |
Question: Triceps and biceps muscles in the upper arm are an example of what type of muscle relationship?
Options:
A. competitive
B. opposing
C. synchronized
D. symbiotic | B |
Question: Internal metabolism and the external environment are the sources of heat for what?
Options:
A. optimization
B. thermoregulation
C. hemeostasis
D. bioaccumulation | B |
Question: What is another term for stored energy?
Options:
A. inertia
B. mechanical energy
C. latency
D. potential energy | D |
Question: What occur when elements switch places in compounds?
Options:
A. chemical reaction
B. chemical interaction
C. chain reaction
D. replacement reactions | D |
Question: What does the human heart do?
Options:
A. use blood
B. destroy blood
C. pump blood
D. make blood | C |
Question: What bond is the force of attraction that holds together positive and negative ions?
Options:
A. Protonic
B. Electric
C. ionic
D. magnetic | C |
Question: There are five primary tastes in humans: sweet, sour, bitter, salty, and what?
Options:
A. aroma
B. umami
C. tangy
D. hot | B |
Question: Are birds and mammals mainly exothermic or endothermic?
Options:
A. endothermic
B. autotrophic
C. hypothermic
D. exothermic | A |
Question: What are the high points in a transverse wave called?
Options:
A. apex
B. waves
C. peaks
D. crests | D |
Question: Chemistry and physics are fields in what type of science?
Options:
A. Biology
B. Botany
C. physical
D. Meteorology | C |
Question: Pyramids of net production and biomass reflect what level of efficiency?
Options:
A. low
B. high
C. extreme
D. medium | A |
Question: The rate of flow of charge in an electrical circuit is known as what?
Options:
A. output
B. voltage
C. velocity
D. current | D |
Question: The vertebrate endoskeleton can also be called what?
Options:
A. exoskeleton
B. deep skeleton
C. structural skeleton
D. internal skeleton | D |
Question: What can be used to speed up biochemical reactions?
Options:
A. carbohydrates
B. proteins
C. enzymes
D. hormones | C |
Question: The abundance of this substance in the atmosphere is what most scientist agree that is causing global warming?
Options:
A. iron oxide
B. liquid dioxide
C. argon
D. carbon dioxide | D |
Question: Most cases of syphilis can be cured with what?
Options:
A. enzymes
B. antibiotics
C. abstinence
D. vitamins | B |
Question: How can people access water in an aquifer that does not flow from a spring or a geyser?
Options:
A. mound building
B. evaporation
C. generate electricity
D. dig a well | D |
Question: What is the term for animals that have a backbone?
Options:
A. carnivores
B. herbivores
C. vertebrates
D. invertebrates | C |
Question: What type of animal that eats only or mainly insects?
Options:
A. invertebrates
B. anaerobic
C. herbivores
D. heterotrophic | D |
Question: What do you call the zone in a body of water where there is too little sunlight for photosynthesis?
Options:
A. aphotic zone
B. semimetal zone
C. Dark Zone
D. observable zone | A |
Question: The sweat glands of the armpit are classified as these?
Options:
A. mucus glands
B. apocrine glands
C. pineal glands
D. adrenal glands | B |
Question: Chitin is a substance that is found in what part of animals like beetles and lobsters?
Options:
A. shell
B. brains
C. tails
D. eggs | A |
Question: What kind of air does a continental polar air mass hold?
Options:
A. frigid wet air
B. cool moist air
C. warm dry air
D. cold dry air | D |
Question: What do you call taxes placed on products that produce carbon dioxide?
Options:
A. chemical tax
B. pollution tax
C. emission tax
D. carbon taxes | D |
Question: What does the coefficient in front of an element in a formula indicate?
Options:
A. time of the reaction
B. number of atoms
C. place on the Periodic Table
D. how much is involved in the reaction | D |
Question: Behaviors that occur naturally and are not learned are called what?
Options:
A. adaptive
B. intuitive
C. acquired
D. innate | D |
Question: Which is the dominant stage of the lifecycle of a fern?
Options:
A. zygote
B. sporophyte
C. gametophyte
D. larvae | B |
Question: What is a specific region in space within which a sensory receptor is responsive to stimuli?
Options:
A. receptive field
B. symmetrical field
C. amplify field
D. deceptive field | A |
Question: What changes from heat or pressure during metamorphism?
Options:
A. grains
B. minerals
C. fossils
D. carbohydrates | B |
Question: Do most substances increase or decrease in size when they change from a liquid to a solid?
Options:
A. stay the same
B. increase
C. it is unable to be measured
D. decrease | D |
Question: The highest point of a wave is called?
Options:
A. frequency
B. crest
C. surge
D. threshold | B |
Question: What is the smallest part of an element called?
Options:
A. neutron
B. nucleus
C. core
D. atom | D |
Question: Dermal tissue covers the outside of a plant in a single layer of cells called what?
Options:
A. the epidermis
B. cuticle
C. scales
D. cambium layer | A |
Question: After fluid collects in nephron tubules in the kidney, where does it move to?
Options:
A. the bladder
B. the spleen
C. the uterus
D. the prostate | A |
Question: What are external skeletons known as?
Options:
A. tentacles
B. exoskeletons
C. exoskins
D. scales | B |
Question: What is the name for the process where data in the genes is transferred to amino acids?
Options:
A. generation
B. translation
C. transpiration
D. mutation | B |
Question: What play an important role in the modulation of the nuclear chain reaction?
Options:
A. particle rods
B. control neutrons
C. radiation rods
D. control rods | D |
Question: What preventative measure is often delivered by injection into the arm?
Options:
A. infection
B. anesthesia
C. vaccine
D. medication | C |
Question: From observations as simple as blowing up a balloon, it is clear that increasing the amount of gas increases what else?
Options:
A. every volume
B. the volume
C. area
D. the shift | B |
Question: What is the scientific term for the amount of light reflected by a surface?
Options:
A. prism
B. albedo
C. inversion
D. reactivity | B |
Question: What part of the muscle fibers cause shortening and contraction?
Options:
A. collagen
B. pores
C. myofibrils
D. fasciae | C |
Question: How many electrons are in the hydrogen atom?
Options:
A. one
B. two
C. three
D. five | A |
Question: If a solution contains so much solute that its solubility limit is reached, the solution is said to be what?
Options:
A. Over done
B. temperatures
C. carbohydrates
D. saturated | D |
Question: What term describes waves that transfer energy through matter?
Options:
A. temperature waves
B. mechanical currents
C. mechanical waves
D. energy currents | C |
Question: What is the name of the mechanism in which sounds are encoded in microwaves by changing their frequency?
Options:
A. shape modulation
B. mechanical modulation
C. frequency modulation
D. molecular modulation | C |
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. mosses
B. dicots
C. monocots
D. gymnosperms | B |
Question: Humans have about 20,000 to 22,000 genes scattered among 23 of these?
Options:
A. chromosomes
B. atoms
C. neutrons
D. ribosomes | A |
Question: What is the term for the use of radioactive decay to estimate the ages of fossils and rock?
Options:
A. radioactive dating
B. microwave theory
C. isotope test
D. radioactive illustrating | A |
Question: On which ridge does iceland sit?
Options:
A. Pacific rim
B. Antarctic ridge
C. Arctic circle
D. mid-atlantic ridge | D |
Question: How are the major families of organic compounds characterized?
Options:
A. Their optic groups
B. their functional groups
C. their visual groups
D. their thermal groups | B |
Question: What do chemotrophs extract energy from?
Options:
A. fatty compounds
B. liquid compounds
C. carbon compounds
D. chemical compounds | D |
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