In a large population on a Pacific island, a few individuals had a mutation that caused them to have
different colored eyes. After a hurricane, the population was reduced to only a few individuals, but
some of those individuals had the rare eye color mutation. Now, after many generations, almost half of
the population on this island has different colored eyes. This is an example of _____________. Fill in the blank(s) with the appropriate word(s).
ANS: genetic drift
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The oldest surviving primate lineage includes the ____, agile climbers that live in the forests of Madagascar
a. lemurs b. tarsiers c. gibbons d. squirrel monkey e. chimpanzee
Which of the following is an endotherm?
a. a shark c. a monkey b. a frog d. a snake
In biological magnification,
a. poisons build up in food chains and webs so that the concentration is highest at the high end of the food chain. b. there is a tendency for an environment to change when organisms first invade. c. more highly evolved forms are able to build large populations under favorable conditions. d. parasites spread rapidly through congested populations. e. sediments fill in aquatic environments so that succession will occur if organisms disturb the aquatic habitat.
Jillian is a top-level cross-country runner due to her having predominantly slow-twitch muscle fibers.
Answer the following statement true (T) or false (F)