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Questions and Answers
What is the fundamental difference between an atom and a molecule?
What is the fundamental difference between an atom and a molecule?
- An atom cannot exist independently, while a molecule can.
- An atom consists of protons, neutrons, and electrons, while a molecule does not.
- An atom has a nucleus, while a molecule does not.
- An atom is a building block of matter, while a molecule is a combination of atoms. (correct)
Which macromolecule is primarily responsible for providing energy to the body?
Which macromolecule is primarily responsible for providing energy to the body?
- Protein
- Carbohydrate (correct)
- Lipid
- Nucleic acid
What property of water allows it to moderate temperature changes in organisms and environments?
What property of water allows it to moderate temperature changes in organisms and environments?
- Its low surface tension
- Its low density as a solid
- Its high boiling point
- Its ability to form hydrogen bonds (correct)
