Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Starfish have a unique form of digestion in the animal kingdom and a water-vascular system that allows the animal to breathe.
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Answer:
1
Explanation:
"Six carbon dioxide molecules (CO2) are required to create one glucose molecule (C6H12O6) because carbon dioxide has one carbon per molecule, while glucose molecules have six carbons."
It was plants maintained photothenysis . global oxygen increase very important.but natural do it