Because when a macrophage capture an anitigen, some fragments of antigens are then display on the surface of macrophage, which are then easily recognized by other fighting cells.
<span>In a solution, a buffer is a substance that releases and catches Hydrogen ions keeping the same pH. A buffer is resistible on pH change by taking Hydrogen ions whenever acids are being added to a solution. Whenever bases are added, it donates hydrogen ions. Therefore, the answer to this question is letter A.</span>
I'm confident that it's conduction because it's direct contact
The leading causes of death in the middle ages are the black death and the bubos
It should be C. ATP <span> supplies energy for many biochemical cellular processes by undergoing enzymatic hydrolysis especially to ADP —called also adenosine triphosphate.</span>