Syphilis, a sexually transmitted disease, is most harmful to infants during the
a. period of the zygote.
b. birth.
c. embryonic stage.
d. period of the fetus.
D
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A schedule in which reinforcement is contingent on the behavior of more than one subject is a _________
a. multiple schedule b. mixed schedule c. tandem schedule d. cooperative schedule
In severe cases, children who live with constant violence may develop posttraumatic stress disorder
Indicate whether the statement is true or false
Recall the study by McNamara, Long, & Wike (1956) in which rats were exposed to a T-maze in one of two ways: the rats in one group ran the maze themselves, while the rats in the other group were pushed through the maze in carts
Which group(s) learned to make the correct choice at the end of the "T"? a) The rats who ran themselves learned to make the correct choice, but the rats in carts failed to learn it. b) The rats in carts learned to make the correct choice, but the rats who ran themselves failed to learn it. c) Neither group of rats learned to make the correct choice. d) Both groups of rats learned to make the correct choice.
Which of the following is most accurate about how people get cancer?
A) ?People very often inherit cancer from their parents. B) ?People are never genetically predisposed to cancer. C) ?People's behaviors contribute primarily to cancers. D) ?People's cancer rates vary over longer time periods.