How the mass of a plant increases as it grows
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As a plant grows, its mass increases. The matter that makes up this new mass comes mostly from air and water that the plant changes into organic compounds such as cellulose using the energy from sunlight.
As an animal grows, its mass increases. The matter that makes up this new mass comes mostly from
A.
air and water that the animal changes into organic compounds using the energy from sunlight.
B.
organic compounds that the animal breaks down into water and carbon dioxide.
C.
substances that the animal has eaten but cannot digest.
D.
food that the animal has eaten and changed into other organic compounds.