Answer:
Oxygen
Explanation:
Your cells use oxygen for energy, as a result makes carbon dioxide
It originated in China
It is highly contagious
It infects the lungs
It can cause permanent damage
Seniors are more prone to getting it
First one is D. I think because, and then, also this and that. then
Answer:
brainlest??
Explanation:
yes, bacteria can be both helpful and harmful to the human body, it can help digest food, breaks down carbohydrates and toxins, and help absorb the fatty acids that which cells need to grow.
The characteristics are health and mind. I'm not to sure but give it a try.
