About an hour or so after a sperm enters the ovum, these two cells suddenly fuse, becoming one cell. What is this cell called?

Darlene, who has two young children, reports, "I certainly am not the calm, self-assured person that I used to be. At times, I turn into a screaming shrew." According to the research, Darlene is a(n) _____ mom.

a) incompetent b) fairly typical c) single d) older

The text mentions a facility called the Life Center operated by the Quakers in Philadelphia. The main way in which this center is different from most other assisted living facilities or retirement communities is that it:

a. is federally funded under the National Endowment for the Arts b. includes mandatory religious services for all residents, who come from many different religious traditions c. it has seniors living in the same complex as people of other ages, including students d. it requires people who live there to be widows or widowers