Which best explains why people with dementia become aggressive and have catastrophic behavior

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

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

If you are having a hard time lifting something, you should arch your back. a. true b. false