Respiration by means of book lungs is characteristic

of some
a. flatworms.
b. arthropods.
c. annelids.
d. mollusks.
e. gastropods.


Answer: b

Biology & Microbiology

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Which of the following is the correct genus and species name of the common dolphin, a marine mammal?

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The two principal divisions of the peripheral nervous system are the

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Convergent evolution gives rise to analogous structures in unrelated taxa

a. true b. false

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