I believe your answer would be A. Hope this helps!
Answer:
species richness is the number of species in an ecosystem
D. <span>a cell that has one complete set of chromosomes</span>
<span>Fibrin (also called Factor Ia) is a fibrous, non-globular protein involved in the clotting of blood. It is formed by the action of the protease thrombin on fibrinogen which causes the latter to polymerize. The polymerized fibrin together with platelets forms a hemostatic plug or clot over.</span>
All the parts of a cell has separate functions with out the parts of a cell the body would not function ...
