The most common mode of pollination in angiosperms occurs by _____

a. birds
b. wind
c. water
d. insects
e. humans


ANSWER: d

Biology & Microbiology

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Which structure surrounds and protects the brain in all vertebrates?

a. pharynx b. neural crest c. oral hood d. notochord e. cranium

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aid in locomotion of some prokaryotes.

A. Cilia B. Flagella C. Glycocalyx D. Pili E. Peptidoglycan

Biology & Microbiology

Most enzymes are composed of ____

a. RNA only b. protein only c. substrate only d. RNA and protein e. protein and substrate

Biology & Microbiology

Nociceptors are also known as

a. mechanoreceptors. b. pain receptors. c. thermoreceptors. d. osmoreceptors. e. all EXCEPT “osmoreceptors.”

Biology & Microbiology