Plants gather the sun's energy with light-absorbing molecules called

a) pigments.
b) thylakoids.
c) chloroplasts.
d) glucose.


Ans: a) pigments.

Biology & Microbiology

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Figure 23.2 in your text represents a phylogenetic tree of the vertebrate animals. According to this tree, what is the sister group to the tetrapods?

A. sauropsids B. mammals C. lungfish D. amphibians E. coelacanths Answer Point Value: 1.0 points Answer Key: C 5 Reference: Ref 23-1 According to Figure 23.2 in your text, what is the sister group to mammals? A. sauropsids B. tetrapods C. birds D. crocodiles and alligators E. birds plus crocodiles and alligators

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What percent of undergraduate students who binged on alcohol also had other signs of alcoholism?

a. 10% b. 50% c. 25% d. 75%

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Amphibians, birds, and mammals look the most similar as

A. embryos. B. adults. C. newborns. D. juveniles. E. fossils.

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The "fight-flight" response is enhanced by secretions

a. from the adrenal cortex. b. known as epinephrine and norepinephrine. c. stored in the pancreas. d. from the kidneys. e. known as acetylcholine.

Biology & Microbiology