Explanation:
Muscles act on joints antagonistically. Some muscles will contract while other contract pulling on bones around joint hence enabling movement. An example is the elbow joint is moved by antagonistic action of biceps and triceps. When your biceps contract and triceps relax you are able to bend your arm at your elbow. When your triceps contract and biceps relax, your arms straighten.
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Learn more about muscle action on joints;
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Answer: Enzymes are macro molecular biological catalysts that accelerate chemical reactions.
(a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.)
Explanation:
An average normal range is between 4,500 and 10,000 white blood cells per microliter
Answer: Because 1 is a smaller number
Explanation:
Answer:
We could use up all of them right away and not have the resources for humans and animals to survive.
Explanation:
Right now, we are using our natural resources at a consistent rate. We sometimes use to many of them in one day. If we continue using up our natural resources at the rate we are right now. We may not have the necessary resources to survive in about 10-20 years.
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