Answer:
More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.
Yes because places that are poor can’t pay for as many treatments as others
The answer is glucose and oxygen.
Answer:
the answer is F oxygenated blood circulates back into the heart and is then pumped to all parts of the body through the arteries
The answer 4 the above question sounds like a vitamin D deficiency.