60 years is three half life for the substance, so 40*1/2^3=5
Answer:
Increase in eosinophils.
Explanation:
The leukocytes are the white blood cell that plays an important role in the immune system. The white blood cell include eosinophil, basophil, neutrophil and monocytes.
The allergic reactions that are caused by hay fever or asthma is marked by the excess increase in the number of eosinophils in the body. The eosinophils are the first to reach at the site of parasitic infections and protect the body during the allergic reactions.
Thus, the answer is eosinophils.
I believe the answer you are looking for is A) faster and more efficient development of new hybrids. This is not a step. It is the outcome of the steps.
Answer:
The used up all their resources too fast and weren't able to regrow them in time; they eventually basically killed each other off.
Explanation:
