During the germinal stage, the fertilized egg is now called a(n) __________, and travels toward the uterus, where it becomes implanted in the uterus's wall

A recent discovery about the long-lived residents of isolated areas in the Republic of Georgia, Pakistan, and Ecuador shows that they

have no children. have different genetic clocks. may be lying about their age. have no maximum life span.

Thrill-seeking behavior is best explained by ______

a. a motive for homeostasis c. drive reduction theory b. a motive for sensation seeking d. arousal theory