If Calvin just ejaculated for the first time, he has just experienced

A) androgens. B) the HPG axis.
C) spermarche. D) menarche.

C

Psychology

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Generalizing from the text, which teen is MOST likely to feel unhappy with his or her weight?

A) a fraternal twin girl B) a fraternal twin boy C) an identical twin girl D) an identical twin boy

Psychology

The relevant details of each element in a human activity system is the same regardless of the unit of analysis

a. true b. false

Psychology