How many chromosomes are in each germ cell?

The view of glial cells as merely "supporting players" has begun to change; as a result neuroscientists now believe that glial cells may play a role in

a) learning and memory. b) development and growth. c) sensation and perception. d) hunger and thirst regulation.

The content of girls' magazines is focused predominantly on physical appearance and attracting boys, while boys' magazines are more likely to focus on

a. physical appearance and attracting girls. b. hobbies and activities. c. career and education. d. sexually appealing imagery.