<span>Hydration is basically supplying a person with water in order to restore or maintain a balance of fluids. In chemistry, h</span><span>ydration is a chemical reaction when a substance is combined with water. </span>
Answer:
1. D
2. Unclear, it should say it's but there is an answer choice saying "change its to it's," the article may have been meant to say "its", which would make C correct since it isn't being used as a possessive pronoun. If not, it would be D
3. A (since it is referring to today's as a possessive pronoun)
4. A
5. D
Explanation:
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Answer: Cell wall and cell membrane
Explanation: The cell wall and cell membrane protects the cell the cell wall gives it it's shape and the membrane controls what enters or exits the cell