Check the scene and and ask if they have gotten somebody to call 911 and/or AED, then ask if they need to take a break from CPR and take over if you’re certified
Answer: Can restore balance to ecosystems.
Answer: respiratory control centers
Explanation: respiratory control centers: The medulla which sends signals to the muscles involved in breathing, and the pons which controls the rate of breathing.The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur.
The answer is nitrogen. It comprises
approximately 78% of the atmospheric air.
Nitrogen can be found in most life
processes including as a component of amino acids –amino group (NH3-). It is also involved
in the structure of nucleosides that are critical
in the formation of nucleotides and ATP.
<span>Carriers of the sickle-cell trait are less likely to die of malaria. The gene doesn't protect against being infected with malaria, but it keeps the infection from actually taking hold. Originally, it was thought that it prevented infection altogether.</span>
