Answer:
a catalyst
Explanation:
An enzyme is an example of a catalyst which speeds up or controls the chemical reactions in an organism. A catalyst speeds up the rate of the reaction without itself being consumed by the reaction.
Answer: A. Above
Explanation:
Scientists believe that in order for humans to see things, the brain has to make certain assumptions which are done based on previous scenes that it has interpreted before because the eyes do not provide it with complete data. .
One of those assumptions is that light comes from above which is why the shape of a picture can change depending on the lighting in it.
Explanation:
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age?
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