The placenta:

a. develops from only the mother's tissue.
b. acts as a filter that permits oxygen and nutrients to reach the embryo from the mother.
c. is an impermeable barrier that protects the developing fetus from toxins.
d. is reused for each pregnancy a woman has.


B

Psychology

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A group of psychologists is conducting research to determine whether people eat more when they are in the presence of environmental stimuli that increase anxiety, such as loud noises or flashing lights. These scientists MOST likely follow

a. the behavioral perspective. b. the psychodynamic perspective. c. the humanistic perspective. d. the functionalist perspective.

Psychology

What is the PRIMARY reason that psychologists study aspects of the damaged brain?

A) Psychologists already know how the normal brain works. B) Psychologists can learn about normal brain processes by studying what happens when these processes are disrupted. C) Psychologists usually only have access to persons with brain dysfunction. D) Psychologists are only interested in abnormal behaviour and the impaired brain processes that produce this behaviour.

Psychology

According to the reality principle, the purpose of the ego is to:

a. determine what actually happened in a given situation b. search for socially acceptable outlets for the id's desire c. impose order on our perceptions d. help us form workable judgments about other people

Psychology

In a research study, participants are wearing devices that signal them when they should provide reports about what they are feeling and thinking. The researcher is using the __________ method

FIll in the blank with correct word.

Psychology