In evolution by natural selection, the two main sources of variation are mutations and
a. instincts.
b. genetic recombination.
c. sexual selection.
d. reproductive fitness.
Ans: b
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Which of the following is NOT one of the changes made to the 2016 SAT?
a. Fewer sections b. No penalty for guessing c. Less emphasis on speed d. Increased answer choices from 4 to 5
The goal of experimental control is to
a. emphasize description rather than explanation. b. prevent confounding variables from affecting the dependent variable. c. make simple research appear complicated. d. determine whether the dependent variable causes the independent variable to change.
A person suffering from insomnia has a sleep problem characterized by
a. difficulty in going and staying asleep. b. sudden, irresistible attacks of sleepiness. c. night terrors and sleep talking. d. a failure of normal muscle paralysis during REM sleep.
Identify the characteristics of the participants known as Terman’s Termites as they aged into their adult years
Please provide the best answer for the statement.