Genetic variety i believe.
Answer:
B cells develop into plasma cells that make antibodies to fight infection.
<span>A woman who regularly misses meals is the most likely to have a child suffering from lowered birth weight. This is because the woman is not receiving enough nutrients for both herself and the developing fetus, leading to undernourishment on the parts of both organisms and weights under what the recommended measures would be.</span>
An independent variable is the one that you change and the dependent variable that changes when he independent variable changes.