How many new std cases are there each year?
a. 30 million
b. 15 million
c. 1 million
d. 500,000

Emotional signs of stress include aches and nausea

Why would one lymph node in the neck be swollen and not the other? what causes them to swell?

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?