3. Explain the function of metabolism and why it is important to the body system? 4. Describe the different functions of the endocrine system.
5. Describe the different body senses and how they function.

answer to number 3

Explanation:

metabolism is important because it helps to burn fat and carbs from the body. Also remember some people have fast metabolism and others have slow metabolism. hope this helps:)

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.