Answer:
Actually I don't think there are any calories in it
Explanation:
I believe it’s carbon dioxide, because you use your respiratory system to breathe in oxygen, and oxygen goes through your circulatory system. And you breathe out CO2.
It can help you keep track of your fitness.
Answer:
<h2>
Radiation</h2>
Explanation:Radiation is a process in which heat is transferred from one point to another directly without any intervening medium.Radiation involves the transfer of heat using electromagnetic waves through space.
If some living things do not reproduce this could be considered a defect or a genetic mutation in those people. If we take humans for example, if most humans reproduce and some don't because they cannot (if a guy cannot produce sperm) this doesn't mean that he isn't alive, it just means he was born with a genetic mutation which doesn't allow him to produce sperm needed for reproducing.