Answer:
Cell
Explanation:
A cell is the smallest unit of a living thing.
The Answer Is On This Link https://technet.microsoft.com/en-us/library/cc961723.aspx
Answer: The systems regulate the house, the same way our body system helps regulate our body. If it wasn’t for the electrical system, plumbing system, heating, and cooling system the house wouldn’t be regulated or able to live in. Just like if our bodies isn’t being regulated, we can't live.
I hope this could help you! ^^
A theory in science is a remark on what happened
