I think it might be d. the lungs expand and contract which increases the rate of blood flow so the muscles can convert and store energy
A). If you get sick, you have a weakness within the immune system that causes you to have the symptoms of the illness as the white blood cells are failing in getting rid of the illness itself.
Question: <em>An exercise that causes the muscle to contract against an external force is called?</em>
Answer: Resistance training. The name is pretty self-explanatory, resistance; going against an external force? This exercise mains in increasing your strength, endurance, and hypertrophy and is used by many bodybuilders who are trying to build up muscle fast.
Uplifting Note: Breakfast is the meal you share with everyone since you're all starting the day together, go and plan something tasty!
What task do you what to accomplish?