Answer:
chemical composition,cells, tissues,organs,organ systems,organism.
The total energy from an isolated system is constant; energy can be changed from one form to another, but can't be created or destroyed.
<span>Treatment can help but the condition can't be cured</span>
I would say that answer choice C is the best out of this selection. Carbon is the main element in organic compounds, and organic compounds just so happen to make up the cells that carry out life processes for all living things. Hope this helps.
