Antibodies to common microorganisms have been developed by infancy. <span>An </span>antibody<span> (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.</span>
Answer:
It's the leaf, or it is called chloroplasts.
Explanation:
Blood enters the pulmonary vein with close to 100% of the blinding site for oxygen saturated.