Which of the photographs in the above figure is an angiosperm?
a. A
b. B
c. C
d. D
e. both C and D
ANSWER: d
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Some flowering plants cannot self-pollinate which increases their tendency to mate with phenotypically different mates, a process called disassortative mating. What effect would this have on a population in Hardy-Weinberg equilibrium?
A. The population would remain in Hardy-Weinberg equilibrium. B. A decrease in heterozygotes would be observed. C. An increase in heterozygotes would be observed. D. No change homozygotes or heterozygotes would be observed. E. An increase in homozygotes would be observed.
To mobilize more glucose _____ during fasting.
A. only cortisol will increase B. only epinephrine will increase C. only glucagon will increase D. only glucagon and cortisol will increase E. cortisol, epinephrine, and glucagon will all increase
A type III survivorship curve is characteristic of
a. cattle. b. horses. c. eagles. d. sea urchins. e. humans.
Which of the following is NOT considered to be well-accepted evidence related to human evolution?
A. Several species of Australopithecus and Paranthropus are known from early hominid fossils. They were herbivores and walked upright. Their fossils are only found in Africa. B. Only a single species of the genus Homo became prominent in Africa and appeared to have made a change from a primarily herbivorous diet to a carnivorous diet. C. Fossils of Homo erectus are found throughout Africa, Europe, and Asia, but not in Australia or the Americas. D. Based on fossil evidence it appears that the climate of Africa was becoming drier during the time that hominid evolution was occurring.