Capillaries connect arterioles and venules and enable the exchange of water, oxygen, carbon dioxide .
The five components that make up the total fitness are:
- cardio vascular endurance
- muscular strength
- muscular endurance
- flexibility
- body composition
Answer:
pertussis or the 100-day cough
Explanation:
<span>C.<span>Janine should increase the intensity or length of her exercise programs because it is more difficult to maintain high fitness levels as you age.</span></span>