Coral reefs, atolls, and islands are the result of the buildup of coral

(a) polyps.
(b) medusae.
(c) exoskeletons.
(d) wastes.


(c) exoskeletons.

Biology & Microbiology

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a. one b. two c. single d. multiple e. incomplete

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What is the advantage of using PCR over traditional bacterial cloning to generate large quantities of a specific piece of DNA?

What will be an ideal response?

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Genes on which chromosome determines if the sex of a child will be male or female?

A) X B) Y C) 21st D) 5th E) 19th

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The older a clade:

a. the more likely that its members will share very similar sequences. b. the more likely that its members would show sequence divergence. c. the less likely it has a common ancestor. d. None of the above.

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