When does exponential growth occur

exponential growth occurs under rich resources less mortality

Explanation:

Exponential growth is supposed to occur at the time when there are pretty much resources in the surroundings and the organism growing is supposed to double in a very short time. For example when bacteria is allowed to grow in laboratory with the agar provided in petri plates the exponential growth is about to be observed with in a day on that plates

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.