Campbell Biology MCQ
Fossils found in strata reveal that ________.
Answer
Correct Answer:
Older strata carry fossils that differ greatly from living organisms
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During fertilization, the acrosomal contents _____.
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Correct Answer:
Digest the protective jelly coat on the surface of the egg
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The decline of mpf activity at the end of mitosis is due to _____.
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Correct Answer:
The degradation of cyclin
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Sutherland discovered that the signaling molecule epinephrine _____.
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Correct Answer:
Elevates cytosolic concentrations of cyclic AMP
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Prior to the work of lyell and darwin, the prevailing belief was that earth is _____.
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Correct Answer:
A few thousand yr old (6000) and unchanging
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Normally, only female cats have the tortoiseshell phenotype because _____.
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Correct Answer:
A male inherits only one allele of the X-linked gene controlling hair color
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In yeast signal transduction, a yeast cell releases a mating factor, which ________.
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Correct Answer:
Binds to receptors on the membranes of other types of yeast cells
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The binomial system assigns to each organism a unique name that describes its __________.
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Correct Answer:
Genus and species
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Researchers can use molecular homologies to __________.
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Correct Answer:
Reveal the number of mutations in a particular sequence that has occurred in each species since
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Molecular systematics might include all of the following except ______.
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Correct Answer:
Anatomical similarities
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The multicellular condition of animals and fungi seems to have arisen _____.
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Correct Answer:
By convergent evolution.
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The molecule camp directly activates __________.
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Correct Answer:
Protein kinase A
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The calvin cycle requires ______ and ______ from the light-dependent reactions in order to operate.
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Correct Answer:
ATP . . . NADPH
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The natural human connection to nature and other forms of life is called __________.
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Correct Answer:
Biophilia
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