Which of these is the best example of an umbrella species?
A. northern spotted owl
B. giant panda
C. cogongrass
D. Burmese python
E. American beaver
Answer: A
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The assignment of names to taxonomic groups is referred to as ________.
A. identification B. systematics C. taxonomy D. nomenclature
Based on the data in the Amino Acid Identity Table, which two members of the human globin gene family are the most divergent?
A) a1 and ß B) ? and ß C) a1 and a2 D) a1 and G?
Which of the following are produced during the citric acid cycle?
A. oxygen B. a proton gradient C. ATP, NADH, and FADH2 D. ATP and NAD+ E. pyruvate, ATP and NADH
Which of the following may have cell walls containing teichoic acids?
A. Gram-negative bacteria only B. Gram-positive bacteria only C. archaea D. both Gram-positive and Gram-negative bacteria E. all prokaryotes