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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Nolan was born with a hole in the tube surrounding his spinal cord. Which disorder does Nolan have?
a. German measles b. Teratogenitis c. Spina bifida d. Rubella e. Congenital syphilis
Rose is currently three months pregnant. Throughout her pregnancy Rose has shown an increased sensitivity to some foods, and she has also developed aversions to a number of foods she used to enjoy. Evolutionary psychologists might suggest that Rose's food sensitivities and taste aversions are:
a. a natural response to fluctuating levels of hormones b. an indication that she is likely to have a low birthweight baby c. an indication that her child will have developmental problems d. a natural defense against the influence of teratogens
The adolescent growth spurt occurs approximately
a. the sab. two years earlier for boys than for girls. c. two years earlier for boys and girls in developing but not industrialized countries. d. two years earlier for girls than for boys. me time for boys and girls.
Obesity has increased because it is common for _____.
A. children to walk to school B. preschoolers to watch TV and drink soda C. babies to be breast-fed D. preschoolers to attend preschool