C. Protective over young cubs
It is proven to help build healthy muscles, joints, bones etc. It also has a good effect on your academic performance, as it increases the oxygen flow to the brain.
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Carbon does not stay still in the Earth dynamic. When it is in the atmosphere, carbon is attached to oxygen, changing in dioxide. The carbon dioxide is used by the plants and return to the earth when it dies. The fossil fuels, then, are used by industry and vehicles, what send carbon to the atmosphere and restarts the process.
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Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
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can i have a brainilist pls