Imagine that a new population of humans is established on a new planet from ten randomly selected people in your biology class. Over thousands of years, the descendants of those ten people reproduce and prosper, but do not reflect well the diversity of humans of Earth. This change in the diversity of people on the new planet is an example of _____________.
A. gene flow
B. genetic drift
C. the bottleneck effect
D. the founder effect
D. the founder effect
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The process by which parents produce offspring is called ____
a. feeding b. homeostasis c. compensation d. artificial selection e. reproduction
What is the most appropriate term for a mature pollen grain?
a. megaspore b. microspore c. male gametophyte d. female gametophyte e. immature sporophyte
In populations where individuals with intermediate values of a trait have the highest fitness, the average value of the trait does not change over time, but the variation tends to be reduced. This set of circumstances is known as ________
[two words] Fill in the blank(s) with correct word
From a scientific point of view, what are the advantages of studying extinctions as a consequence of historic human action?
a. Historic information helps scientists to date the start of human impact. b. The effects of human action are independent of nonhuman effects. c. Scientists always know the "natural state" of a system prior to human impact. d. The strength of human impact is easy to measure. e. A and B.