One widely used cladistic method of examining evolutionary relationships is ________, which is based on the assumption that evolution is most likely to have proceeded by the path requiring fewest changes

A) topology
B) neighbor joining
C) parsimony
D) systematics


Answer: C

Biology & Microbiology

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Which connective tissue lacks fibroblasts, or a true matrix, and contains few fibers?

a. muscle b. blood c. adipose d. bone

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You suspect that your roommate may be abusing drugs. He exhibits the following symptoms: aggressiveness, bursts of extreme energy followed by "crash" periods, and delusions. Which drug may be responsible?

A) amphetamines B) LSD C) marijuana D) heroin

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Darwin's theory of evolution was based on his observations during his voyage to Asia

Indicate whether the statement is true or false

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Male peacocks with larger eyespots are more attractive to females than males with smaller eyespots

The two figures below show mean weight (at a certain age) and percent survival of offspring as a function of the father's eyespot size. Are these results consistent with the hypothesis that eyespots are an "honest signal?" Justify your answer. What will be an ideal response?

Biology & Microbiology