On a phylogenetic tree for Anthropoidea, the clade that includes ____ and the clade that includes ____ are sister taxa
because they emerged from a common node.
a. chimpanzees; orangutans
b. orangutans; humans
c. gorillas; chimpanzees
d. gorillas; both chimpanzees and humans
e. old world monkeys; both chimpanzees and humans
ANSWER: d
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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
Which of the following is considered a reverse mutation that will restore the wild type phenotype?
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Skeletons of modern cetaceans have remnants of a __________.
A. rib B. head C. flipper D. pelvis E. spine