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jeka94
3 years ago
12

3. What ecosystem has never been colonized by humans?

Biology
1 answer:
kicyunya [14]3 years ago
3 0
The ocean and the arctic.
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Insulin can never be part of pancreatic juice because it is a hormone, not an enzyme. Hormones are chemical messengers secreted only in blood. Insulin is a hormone secreted by the pancreas to lower blood glucose levels by binding to insulin receptors on cells and stimulating the intake of glucose through glucose transport channels (GLUTs) in the cell membrane.

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