Answer:
b. They are produced by memory B cells
Explanation:
The rapid cell division in activated B cells is followed by the differentiation of daughter cells into the plasma cells. The plasma cells are the precursor for antibodies and memory B cells. The antibodies kill the antigens while memory B cells are long-lived cells.
Hence, antibodies are not produced by memory B cells but by plasma cells.
The basic needs of all cells in the body is to have food, oxygen, and have their wastes taken away.
Red platelets are too vast to leave any capillaries. As capillaries are just a single cell thick and have thin porous dividers this implies substances can diffuse out of them effortlessly. Helpful substances, for example, oxygen and sustenance diffuse out of the blood in the vessels into the tissue liquid where it is then taken to the cells.
Answer:
<h2>Mark me brainliest （⌒▽⌒）（⌒▽⌒）</h2>
Explanation:
<h2>In the alcoholic fermentation, (by yeast, a unicellular fungi) incomplete oxidation of glucose is achieved under anaerobic condition by a set of reactions where the pyruvic acid is converted to carbon dioxide and ethanol.</h2>
The hydrosphere is all water on earth, the lithosphere is the crust and upper mantle, the biosphere is all life on earth, and the atmosphere is all the gases surrounding the earth.
