Gas exchange in humans is the delivery of oxygen lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs.
Answer: Austyn's heart rate is up quite a bit compared to Shanice which means either he was working out harder or since he's a male he has a larger heart which need more blood through the body. The heart rate is affected by how hard you work out? The size and possibly the condition of your heart?
Explanation:
Regeneration is the ability to gain something back again.
Answer:
Because some people are fat and want to lose that fat away.
Explanation:
Pretty sure it’s heterotrophic eukaryote
