The discovery of fossils of whale intermediates suggest that whales evolved from:a
sharks.
b. aquatic reptiles.
c. marine invertebrates.
d. a larger marine mammal.
e. four-legged, land dwelling mammals.
e
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What role has cultural evolution played in human success? What, if any, biological adaptations support this use of culture?
What will be an ideal response?
What type of molecule is shown in the accompanying figure?
a. saturated fatty acid b. unsaturated fatty acid c. triglyceride d. wax e. steroid
The greatest drop in blood pressure occurs in the
a. arteries. b. arterioles. c. capillaries. d. venules. e. veins.
What would be the consequence if one base were changed in the base sequence of a DNA molecule?
A) Messenger RNA would correct the mistake. B) Protein synthesis would stop. C) Genome copying would be impossible. D) A defective protein could be produced.