an earthquake causes the size of a deer population to drop rapidly over a short period. Allele frequencies shift. What mechanism of evolution does this situation illustrate?

a. natural selection

b. artificial selection

c. genetic drift- founder effect

d. genetic drift- bottleneck effect

e. migration

f. sexual selection

g. disruptive selection


d. genetic drift- bottleneck effect

Environmental & Atmospheric Sciences

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The average thickness of the Earth's crust is about ________ miles

A) 70 B) 55 C) 34 D) 28 E) 17

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Meiosis forms ________, which only have one set of chromosomes

A) somatic cells B) gametes C) zygotes D) spores E) daughter cells

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Hokkaido island is about the same latitude as the state of ________

A) Alaska B) Hawaii C) Georgia D) New York

Environmental & Atmospheric Sciences

An examination of a typical 500 mb height map shows that:

A) pressure surfaces can change dramatically over a short distance. B) there is no usefulness in consulting height maps for other pressures. C) upper-atmosphere gradients are typically small. D) it takes strong gradients to produce strong winds.

Environmental & Atmospheric Sciences