The heart can contract. what does this mean?​

When the hearts contracts

it pushes blood out of the heart

and it goes to a blood vessel of the

circulatory system.

Explanation:

When the heart contracts, it pushes the blood out of the heart and into the large blood vessels of the circulatory system. From here, the blood goes to all of the organs and tissues of the body. During systole, a person's blood pressure increases.

Explanation:

not too sure but maybe in the hot springs.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.