The sac in which the embryo resides is called the

a. ectoderm.
b. amnion

c. germ disc.
d. placenta.


b

Psychology

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The author of The Behavior of Organisms was ____, who did not receive acclaim for the text until 50 years later.?

a. ?Skinner b. ?Washburn c. ?Tolman d. ?Hull e. ?Frost

Psychology

What field research gains in _______ it loses in _______

a. control / external validity b. power / control c. internal validity / power d. external validity / control

Psychology

Which of the following is NOT helpful in reducing prejudice?

a. emphasizing competition and individual effort b. cooperating with others c. looking for commonalities with others d. being willing to get acquainted with people from other ethnic groups

Psychology

What the results of a study mean is the focus of the ____ section

a. follow-up b. discussion c. results d. debriefing

Psychology