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.
Red blood cells are found in blood vessels!
False sorry If wrong good luck
The drug helps keep focus and coordination it also increases your heart rate and also affect the lungs I hope this helps
Answer:
the answer is A ,B
Explanation:
pretty surer those two but not sure about the others.
hope this helps you let me no if there right. ; )
