Living systems follow the laws of conservation of mass and energy by <span>stating that </span>matter<span> is not created nor destroyed as a result of chemical reaction.
I REALLY hope this has helped you!!! :)
(If you can, please rate as Brainliest answer! If you could, that would make my day!!!!)</span>
1. proteins
2. essential
3. nonessential
hope this helps!!
Because tropical levels used to be broken because temperatures hasn't varied in the years and history of global temperatures and history.
