Answer:
This question is to vague. What understanding?
Explanation:
Intraspecific competition drives natural selection,as individual members of a species compete with each other for limited natural resources.
So I don’t know the answer but here is information u can find it :The kidneys' job is to filter your blood. They remove wastes, control the body's fluid balance, and keep the right levels of electrolytes. All of the blood in your body passes through them about 40 times a day. Blood comes into the kidney, waste gets removed, and salt, water, and minerals are adjusted, if needed.
