Which of the following is an example of sexual selection?
A. A sex-linked adaptation develops in a species of cats.
B. A predator species develops more precise vision.
C. A species of bird develops a mating call.
D. A species of deer develops a new fur color that helps camouflage it.
Answer: C
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The years between 16 and 21 have been considered optimal for reproduction, hard physical work, and athletic achievement
Indicate whether this statement is true or false.
Research on taste aversions demonstrates that
a. conditioning can occur to almost any CS. b. tastes can acquire CRs in the absence of temporal contiguity. c. taste aversion learning is most effective when the delay between the CS and US is more than 24 hours. d. nausea is largely ineffective as a US. e. taste stimuli lack a natural relation to gastric responses.