1/2 I think because it is supposed to be 50% which is basically 1/2.
The female reproductive system produce egg cells and protect and nourish the offspring until birth. The male reproductive system produce and deposit sperm.
The use of a drug for non medical reasons
Drugs are usually made to help a person combat diseases, etc, but if it is used for something other then it's intended purpose, or is used to, instead of helping the body but destroying it, it becomes a "drug abuse"
hope this helps
<em>An activity that helps develop muscular endurance is;</em>
C. Rowing
<u>Aerobic endurance fitness is an important physical fitness for rowers. Rowers need to accomplish and maintain a very high level of intensity throughout their race.</u>