You worded your question weirdly...
There are many ways to become and stay healthy.
You need to balance your diet and follow the Food Pyramid or My Plate. You can also develop a workout plan and make it part of your everyday life. You need to make sure you get enough of you're daily required nutrients and vitamins :)
If you want a more detailed answer, make add me as a friend, I can definitely help you! I took 7 years of Cooking and Foods and nutrients
Answer:
respiratory
Explanation:
oxygen goes in carbon dioxide goes out
Answer:
False
Explanation:
During exercise, the oxygen DOES NOT concentration in the blood increases to twice that of resting levels.
