Plyometrics are good exercises for athletes to do which of the following? A) build power and speed
B) increase endurance
C) increase flexibility
D) build muscle mass

Which symptoms is a short term effect of tobacco use

The is a thin membrane that transmits sound waves into the middle ear.

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