The two major forces contributing to allopatric speciation are:a

mutation and natural selection.
b. natural selection and migration.
c. nonrandom mating and migration.
d. natural selection and genetic drift.
e. genetic drift and mutation.


D

Biology & Microbiology

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a. controls the eardrum. b. controls the shape of the lens to allow focusing. c. holds the bones of the middle ear in place. d. enables the eyeball to move so that a person may see an object without moving the head. e. is responsible for the size of the pupil in different light intensities.

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To which Phylum do humans belong?

a. Animalia b. Chordata c. Vertebrata d. Mammalia e. Homo sapiens

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