Answer:
The heart pumps blood filled with oxygen through all parts of your body, including the kidneys. The kidneys clean the blood, removing waste products and extra water.
Explanation:
C. Janine should increase the intensity or length of her exercise programs because it is more difficult to maintain high fitness levels as you age.
Answer:
The excretory system is responsible for removing wastes produced by the body. Hope this helps!
Explanation:
