They are the link between the sun's energy and the organisms that cannot manufacture their own food. Without an abundant amount of autotrophs<span> we would be severely lacking in atmospheric oxygen and food.</span>
Answer -interact with the antigen-class ii mhc complex presented by macrophages.
Answer:
Weight and skin color.
You can be born with a different skin color and it can change according to the place you live in. Suppose you were born in Alaska and moved to Mexico, your skin color would become darker as you will receive more vitamin D. You body structure to will also be based on your parents. If your parents are fat but you exercise and eat healthy your body structure will change.
Answer:
I think b.
Explanation:
Cellular respiration uses glucose and oxygen to form co2.
