Which of the following does not require minerals for proper functioning? a) metabolism b)cell and tissues c)nerves and muscles d)none of the above

Which best explains how this maneuver unblock a person's airway?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?