Answer:
the tube allow the plant to absorb sunlight for photosynthesis
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Answer:
A. Time and space
Explanation:
A body is a particular amount of matter. it can be solid,liquid or gas. It can be described as existing in Time and space.
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Hydrogen bonds is holding together the two strands of nucleic
<span>Covalent bonds hold the atoms and molecules together in each of the amino acid chains. Two complimentary chains are held together by hydrogen bonds to form a double-helix.</span>