Valerie, two months pregnant, wonders how food and oxygen are delivered to the developing organism. You should tell Valerie that the __________ performs this function
A) chorion
B) amnion
C) placenta
D) neural tube
Answer: C
Psychology
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Which of the following have the MOST similar genetic composition?
a. fraternal twins c. identical twins b. siblings d. cousins
Psychology
Which of the following is FALSE regarding proximate and ultimate explanations of social behavior?
A) Proximate explanations focus on immediate causes. B) Proximate and ultimate explanations are incompatible alternatives to one another. C) Ultimate explanations focus on distal causes. D) Proximate questions are narrower in focus.
Psychology