Answer: B. Speed up the chemical reaction
Explanation: Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
<span>harsh conditions.
</span><span>high scalers' work </span>
Answer: An elevator coming to a stop would reduce its speed and velocity, and have a negative acceleration
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