Fishing populations to low levels can cause a species to

a. relocate to distant locations.
b. migrate out of the area.
c. switch their prey items.
d. become ecologically extinct.
e. increase its reproductive rate.


D

Biology & Microbiology

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Darwin's observations led to his proposal that evolution occurred due to

a. random chance. b. climatic changes. c. natural selection. d. migration. e. interaction of species.

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Which species is most likely to share the greatest percentage of DNA with humans?

A) blue jay B) beaver C) leopard frog D) dragonfly

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The ________ of a virion determines the type of cell it enters

A) nucleic acid B) matrix proteins C) glycoproteins D) lipid molecules E) shape

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