The concave disc shape of red blood cells Maximizes the surface area of the cell , allowing for rapid movement of oxygen or carbon dioxide to and form the hemoglobin within the cell.
There are called the stomata
Answer:
Anaerobic respiration does not need oxygen. It happens when there is not enough oxygen for aerobic respiration. ... 100m sprinters respire using anaerobic respiration in their race because their bodies do not take in enough oxygen during the race to carry out aerobic respiration.
Explanation:
They allow the heart to pump more blood by decreasing the ESV.
I'm going to assume it is a fill in the blank
So the answer would be fat