I believe the answer is radiometric dating.
Answer:
unsaturated
Explanation:
it is said to be unsaturated because it can further react as not all the carbon hands are bonded
# 1. Carbohydrates
# 2. Lipids
# 3. Proteins and Amino Acids
# 4. Isoprenoids and Pigments
They are related because they are all in the same blood or family you breathe in oxygen and remove carbon dioxide the carbon dioxide it helps other stuff in the ecosystem to survive or live so its like this people breathe oxygen while plants breathe carbon dioxide.
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