Oxygen is transported in the blood in two ways: A small amount of O 2 (1.5 percent) is carried in the plasma as a dissolved gas. Most oxygen (98.5 percent) carried in the blood is bound to the protein hemoglobin in red blood cells. A fully saturated oxyhemoglobin (HbO 2) has four O 2 molecules attached.
(https://www.cliffsnotes.com/study-guides/anatomy-and-physiology/the-respiratory-system/gas-transport)
The Cranium protects the brain and is a bit like a skull.
The Medulla helps respiratory and the circulatory systems with breathing and in the brain the neurons form forebrain to midbrain travel through the Medulla.
Answer:
is letter C
Explanation:
because trees and plants use carbon dioxide in the photosinthese transforming it in oxygen and gluten by that being able to reduce the amount of carbon in the atmosphere
Cannabis maybe. Hope this is for school lol
