How many major branches are there on the evolutionary tree of life?
A. one B. two C. three D. six E. 12
Answer: C
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Which body structures will store the largest amount of glycogen?
a. Pancreas b. Liver c. Brain d. Stomach e. Blood
The cell wall
a. provides physical support for plant cells. b. controls the transport of materials out of the cell. c. replaces the plasma membrane in plant cells. d. is found in all eukaryotes. e. prevents the transport of toxic substances into the plant cells.
You work for a company that manufactures food products. A new "wonder food" is being distributed by a rival company. The researchers in your company determine that the "wonder food" contains only carbon, oxygen, and hydrogen. At this point, your
researchers can say with certainty that the food A) includes proteins. B) could only be made of triglycerides. C) could only be made of carbohydrates. D) does not include proteins or nucleic acids.
The McDonald–Kreitman test:
a. compares substitution rates between and within species. b. compares substitution rates across two time scales. c. compares substitution rates across genes. d. A and B. e. All of the above.