I think the answer you are looking for is peer review.
Answer:
Exercise causes the heart to pump blood into the circulation more efficiently as a result of more forceful and efficient myocardial contractions, increased perfusion of tissues and organs with blood, and increased oxygen delivery.
Explanation:
<span>D. Gravity is the force of attraction between two objects and is dependent upon the mass of the objects and the distance between the objects.</span>
Answer:
a long time just kidding
Explanation:
20,000 and 40,000 years ago this can be proved by fossil evidence.
mark me brainliest please!
