The Category is Health: Correct. The Q'n reads much better as "How does a Healthy Body Maintain It's Cells?".
Begs an Answer: PBS Source: "Put a Sign on your Fridge -'Salad is the Main Meal'." Also, The Critical Importance of Micronutrients.
These are positive aspects of health. Both activities help your body develop and maintain healthy cells, organs, joints, etc.
Vitamin B12
avoid to jump and to slip
Well, a food calorie chart of all the healthy foods a person should intake daily can really help them lose and maintain a healthy weight. That way, the body gets a variety of nutrients.
They help keep things (body or animals etc) healthy and alive.
To pass nutrients, gases, hormones, blood cells, etc to and from cells in the body to help fight diseases, and help stabilize body temperature and pH to maintain homeostasis.
It has good Vitimans and Minerals that help your body grow stronger. They also help you to digest and get energy. But eating to much meat is also not good. It can age skin cells
the body needs to retain blood glucose simply because without it we would all die
The immune system keeps the body healthy by fighting off germs and things that may harm your body with special cells and chemicals
Being in a healthy state of mind can help you to stay the same weight often times when you'r stressed out it can even make you loose weight
They help release energy stored in other nutrients.
Staying healthy.