Men experience the equivalent of menopause: the male climacteric

What is one explanation for why Lashley failed at finding the engram? a. He used poor surgical methods

b. Not all memories are physiologically the same. c. The engram is continually changing location in the cortex. d. Classical conditioning had not been discovered yet.

Alisha is an African American girl growing up in the United States, and Jamila is an African girl growing up in Kenya, Africa. Alisha experienced menarche at 12 years old, and Jamila experienced menarche at 16 years old. Which of the following is the best explanation for the difference in the age at which they experienced menarche?

a. Accessibility to high-quality nutrition and medical care in the United States b. Heredity, such that the girls were more likely to experience menarche at the same ages that their mothers did c. Participation in sport activities that pressure girls to maintain low body weight in the United States d. Increased stress levels resulting from exposure to civil war in Africa