Intro To Bio Nine Weeks Test Question Preview (ID: 43791)
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Why do birds migrate?
a) They respond to their environment.
b) They are made of cells.
c) They have to maintain internal balance.
d) They are based on an universal genetic code.
Which of these is a food chain?
a) tree, deer, mountain lion, hawk
b) grass, grasshopper, snake, hawk
c) snake, hawk, grass, grasshopper, deer
d) deer, tree, hawk, mountain lion
What is the pH of stomach acid?
a) below 7 and it is a base
b) below 7 and it is an acid
c) above 7 and it is base
d) above 7 and it is an acid
What is the pH of oven cleaner?
a) below 7 and it is a base
b) below 7 and it is an acid
c) above 7 and it is base
d) above 7 and it is an acid
Plants are_____________?
a) primary consumers
b) omnivores
c) herbivores
d) primary producers
Animals that get energy from eating carcasses are_________?
a) omnivores
b) detritivores
c) scavengers
d) heterotrophs
Relatively constant internal physical and chemical conditions are called?
a) metabolism
b) homeostasis
c) science
d) hypothesis
Scientists who did experiments to prove DNA is genetic material
a) Schledien and Swahn
b) Watson and Crick
c) Hershey and Chase
d) Avery and McCarty
In CO2 + H2O = H2CO3 , what are the reactants?
a) CO2 , H2O, and H2CO3
b) CO2 and H2CO3
c) CO2 and H2CO3
d) CO2 and H2O
Who discovered that DNA was in the Double Helix shape?
a) Schledien and Swahn
b) Watson and Crick
c) Hershey and Chase
d) Avery and McCarty
Which is NOT a type of dispersion?
a) random
b) uniform
c) clumped
d) systemic
Reaction in which water breaks down polymers into monomers:
a) van der Waals force
b) Dehydration Synthesis
c) hydrolysis
d) ionic reaction
Which scientist used xrays to confirm DNA?
a) Franklin
b) Darwin
c) Griffin
d) Mendel
What characteristics do carbohydrates and lips share?
a) contains,nitrogen, used for energy
b) used for energy; contains primarily carbon, hydrogen, and oxygen
c) forms hormones, dissolves in water
d) dissolves in water, contains nitrogen
What structure make a nucleic acid RNA rather than DNA?
a) complementary base pairs
b) no nitrogen bases
c) phosphate groups instead of nitrogen bases
d) contains uracil instead of thymine
What is the part of Earth on which life exists?
a) lithosphere
b) hydrosphere
c) biosphere
d) atmosphere
Who performed Griffin's experiment?
a) Griffin
b) Mendel
c) Crick
d) Darwin
Which is NOT a function of protein?
a) control rates of reactions
b) move substances into or out of cells
c) help to fight disease
d) store and transmit genetic material
Which complements go with these bases in DNA? A T C G A
a) T A C U U
b) T A G C T
c) C G A C U
d) C A G C T
What is a symbiotic relationship in which both species benefit?
a) commensalism
b) mutualixm
c) predationalism
d) parasitism
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