Which is the lipid molecule that controls what types of molecules can pass though?

What are 3 social benifits, 3 emotional benifits and 3 physical benefits to abstinence?

Which of these is most likely to prevent pregnancy? a. tracking of female body temperature to identify ovulation times b. proper condom use c. male withdrawal before ejaculation d. proper spermicide use

The social science that differs from sociology primarily in that it focuses on individual behavior rather than on group behavior is a. anthropology. c. psychology. b. economics. d. political science.