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11Alexandr11 [23.1K]
3 years ago
12

Why is about half of all freshwater on Earth is inaccessible to humans?

Biology
2 answers:
zimovet [89]3 years ago
6 0
It is frozen in glaciers
larisa86 [58]3 years ago
4 0
It is frozen in glaciers
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The statement which best explains why Pepsin will not break down starch is that enzymes only work for specific substrates.

<h3>What is an Enzyme?</h3>

This is referred to as a biological catalyst which helps to speed the rate of chemical reaction in the body by lowering the activation energy needed to start it up. it is also proteinous and can be denatured by heat and other substance such as chemicals.

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Read more about Enzyme here brainly.com/question/1596855

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