A single common ancestor evolving into the current 28 species of silversword plants found among the Hawaiian islands is an example of

A. gradualism.
B. adaptive radiation.
C. extinction.
D. a prezygotic barrier to evolution.
E. punctuated equilibrium.


B. adaptive radiation.

Biology & Microbiology

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Compare and contrast the events and results of oogenesis and spermatogenesis

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Which structure in the development of the amphibian is equivalent to the primitive knot in bird

development?

a. the archenteron b. the dorsal lip of the blastopore c. the ventral lip of the blastopore d. ectoderm e. endoderm

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In which organ are tissue transplants least likely to be rejected?

a. liver b. lung c. heart d. eye e. kidney

Biology & Microbiology

Compare the lytic cycle and the lysogenic cycle of bacteriophages

What will be an ideal response?

Biology & Microbiology