B. FALSE 29. T/F - The lack of Oxygen is the primary
reason why your body "feels" like it
needs to breath.
TRUE
b. FALSE

When your body doesn't have enough oxygen, you could get hypoxemia or hypoxia. These are dangerous conditions. Without oxygen, your brain, liver, and other organs can be damaged just minutes after symptoms start Explanation:

true

answer; ///(b) it is composed of four protein chains and four heme groups;

there’s no image attached but i can if you want: )