Answer:
The forest, maybe the atmosphereExplanation:
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Answer:
a layer or a series of layers of rock in the ground. ,
a level or class to which people are assigned according to their social status, education, or income.
Explanation:
The pericardial cavity separates the parietal and visceral pericardium
Answer:
Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules.
Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.
Explanation:
ATP can't store large amounts of energy for long periods of time.
