A macromolecule is a large molecule containing many atoms. The four type are carbohydrates, lipids, proteins, and nucleus acids.
Answer:
Last electron level
Explanation:
Valance electrons are always in the outside level!
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Answer: Take out the trash regularly, make sure food is stored in secure containers, clean the house regularly, and don't leave perishable foods out for a long time.
Answer:
Every ecosystem is made up of a variety of living and nonliving things. The living things within an ecosystem depend on each other to obtain their energy.
Explanation:
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