Which of the following describes a reduction in genetic diversity when a new population is established by migrants?
A. Founder effect
B. Genetic drift
C. Inbreeding
D. Gene flow
E. Bottlenecks
Answer: A
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Which of the following statements regarding the figure above is true?
A) Immigration rates are higher on smaller islands. B) Extinction rates are highest on large islands close to the mainland. C) Species richness should be higher on larger islands close to mainland. D) Species diversity should be highest on larger islands away from mainland.
Four features help define the __________: a notochord, a dorsal hollow nerve cord, a pharynx with gill slits, and a tail
extending past the anus. Fill in the blank(s) with the appropriate word(s).
Most of the earth's usable carbon is in its
a. sedimentary rocks. b. atmosphere. c. biomass. d. oceans. e. mantle
The difference between a theory and a hypothesis is that a:
A) theory must be supported by evidence. B) hypothesis must be supported by evidence. C) theory must be proven beyond a shadow of a doubt. D) hypothesis must be proven beyond a shadow of a doubt.