Answer:
the blood has a high concentration of hemoglobin and a low concentration of oxygen
Explanation:
Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure. ... There are four iron atoms in each molecule of hemoglobin, which accordingly can bind four atoms of oxygen. Globin consists of two linked pairs of polypeptide chains.
Answer:
c. It will decrease because of decreased photosynthesis
explanation:
photosynthesis is the process in which plants turn carbon dioxide into oxygen. Without it, animals would use up all of the oxygen, and there would be nothing to replenish it. If The trees and forests are chopped down, there will be less plants to create oxygen for us to breathe