Answer:
HEAT .
Explanation:
energy in the body is lost as In.
Answer:
D
Explanation:
The digestive system contains many organs that break down the food you consume. The salivary glands in your mouth break down the food into small chunks, the stomach contains acid that breaks down the food further, especially the proteins, and finally the small intestine breaks down the food into molecules, which it then absorbs for the cells in your body to use.
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Nucleotides are phosphate group sugar and a nitrogen base
