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
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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
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.
Hokkaido island is about the same latitude as the state of ________
A) Alaska B) Hawaii C) Georgia D) New York
Meiosis forms ________, which only have one set of chromosomes
A) somatic cells B) gametes C) zygotes D) spores E) daughter cells