A red blood cell's function is to transport oxygen.
Answer:
I think the answer is determining infectivity of a virus
Explanation:
hope that it will help you
After mining, to reclaim the land, the depression is filled with rocks then the top is filled with loosely graded soil. Introduction of early succession plants is important before big trees can grow. The early succession plants help in the breaking down of the rocks into soil hence making the topsoil deeper to support trees.
The answer is b the protists