I did buu whats the question?
I think the answer is nitrogen fixation.
According to the evolution theory, the first insects appeared about 400 million years BC in the Devonian Period.
If a cell was to undergo all the activities, eg cell division my mitosis, it results in growth. When we were still zygotes, cell division happened by mitosis resulting in the grown ups we are now. Over division results in growth of cancer cells. And if the body exercises, Lymphocytes are produced more, resulting in more of them circulating in blood preventing disease attacks
