Which whale is not a rorqual?
a. blue whale
b. fin whale
c. humpback whale
d. right whale
e. killer whale
D
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Anaerobic fermentation often provides CO2, which can be used by ________ as an electron acceptor for energy
A) acetogens B) methanotrophs C) methanogens D) acetogens and methanogens
All of the following can result in acquired immune deficiency except ________.
A. bacterial infection B. enzyme deficiency C. malnutrition D. radiation treatment E. stress
Humans domesticated the rose from a wild ancestor with large, scented flowers. Why might fragrant chemicals in flowers be adaptive for wild roses?
A) They attract herbivores. B) They repel seed dispersal agents. C) They attract pollinators. D) They prevent seed germination.
Approximately what percentage of the human genome is identical to that of a chimpanzee?
A) 50.0% B) 62.3% C) 92.0% D) 98.8%