Answer:
The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem.
Explanation:
The correct answer is the final option - sickle cell disease and malaria are both potentially lethal diseases.
The other options are incorrect because sickle cell disease is an inherited disease, but malaria is not - it is an infectious disease. However, both of these disease are quite dangerous, and may have severe consequences (such as death) if they are not properly treated.
I would say a lion because of the food it gets.
Proterozoic is the answer.
