The answer is B. both need food and air
Increasing melanin production.
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~ Jasmine
It acts as biological catalysts, which can speed up the chemical reactions, it can fit substrates into its active site and produce a product, but the enzyme shape is not changed and it can be reused. just unless the enzyme meets high temperature or extreme pH values, which will denature them
On Ed-genuity, the answer is D) medical books
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