Answer:
no options but read below
Explanation:
Haemoglobin's primary role is to transport oxygen from the lungs to body tissues to maintain basic life functions. Without healthy red blood cells, your body can't get enough oxygen, and this can result in you feeling increasingly tired or exhausted.
C. The smooth ER helps make protein in a process called protein synthesis
C.) Feedback inhibition slows down cellular respiration (to conserve resources)
Hope I helped
Antigens are usually the proteins
The answer to your question is rbc
