an animal's niche can be described by all of the following except:
a) the type of food the animal eats.
b) how old the animal lives to be.
c) where the animal lives.
d) what time of day the animal hunts.

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it