Answer:
the basic unit of a chemical element.
Explanation:
Physical and chemical changes may be similar because neither can change the number of atoms of each element that are present.
<h3>What do you mean by Physical changes?</h3>
Physical changes may be defined as those changes which appeared physically like color, odor, texture, mass, and density.
Chemical changes may lead to the formation of new chemicals with definite properties. It involves when the chemical identity of any substance may alter.
Therefore, physical and chemical changes may be similar because neither can change the number of atoms of each element that are present.
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Answer:
The answer is most likely carbohydrates: building materal abd glucose storage.
Proteins: cell membrane component and signaling moelcule
Nucleic acid: carry genetic material
Lipids: hydrophobic moleculea
The answer to your question is true
