That would depend on the following.
But in general the Extretory aka the Urinary system gets rid of the waste.
Red blood cells are disc shaped. It is thought one factor that allows them to have this shape is because they do not have a nucleus. This tends to increase amount of space inside the cell for hemoglobin.
They have a flexible disc shape which helps increase the surface- to- area volume ratio which enables oxygen and carbon dioxide to diffuse across the red blood cell's plasma membrane more readily.
Their disc shape also enables them to squeeze through tiny capillaries that are half their size .
Answer:
The answer is D (last one)
Explanation:
C. because the oxidation of carbon compounds during cellular respiration produces energy, just like the burning of natural gas and organic compounds. I hope this helps!
