Answer:
drinking polluted waters can cause bacteria to intect the body, and get the person sick, as well as infecting a cut that the person might have, since any nick in the skin is a open source for bacteria, since the skin is the first line of defense against bad bacteria.
Explanation:
I think the answer is D but i'm not to sure about it
Answer:
muscular system help to protect our body system.
It also protect our body system from direct contact of germs.
Grandma,
There are a lot of long term health advantages that come with doing regular physical activity. It can help with joint issues, as some pain is linked to stiffness and walking regularly works the joints to make them looser and easier to walk on. It also helps energize you and does well for your heart by lowering the risk of heart disease. Exercising for the standard 30 minutes per day helps you lose weight, improves your cholesterol and can lower your blood pressure by as much as 5-7 points.
