Answer:
c
Explanation:
catalysts are used up in a chemical reactiob
Answer:
Circulatory system, respiratory system, digestive system, excretory system, immune system…so many systems are there and you may be wondering how they work together. Well, how the digestive, respiratory, and circulatory work together will be mainly discussed here to help understand your body better.
I hope it helps you
<span>B. to treat cancer, but they can also cause cancer.
Hope this helps!
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