Which structure is altered by emphysema?
a. nasal cavity
b. oral cavity
c. esophagus
d. bronchiole

To avoid food poisoning, perishable items should not be stored in the refrigerator for more than days.

Select the correct answer. which is the safest and most effective way to get a deeper stretch? a. massage the muscles being stretched b. inhale and push the stretch until it hurts c. lean into the stretch as you exhale d. place ice on your muscles before stretching

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?