Puberty is controlled by a ____________________ involving the hypothalamus, pituitary gland, the gonads, and hormones
Fill in the blank(s) with correct word
feedback loop
Psychology
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_____________ have alternative forms known as alleles
Proteins?
Psychology
Which of the following statements regarding dizygotic (DZ) twins is FALSE?
A) DZ twins can be different sexes. B) DZ twins can be very different in appearance. C) DZ twins must have different fathers. D) The occurrence of DZ twins varies across ethnic groups.
Psychology