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C. Pepsin is the hormone that is produced mainly in the stomach and regulates secretions of gastric juice.
What is Mutation
The major source of the genetic diversity among microorganisms upon which natural selection operates is Mutation.
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Answer:
Explanation: The orgaism can be an invasive species it would effect the amount of large or small organisms.things like elk that eat a large amount of certain plants can affect the other organisms source of food.Thats why their hunted by wolves.All the pieces matter.
Because with out energy we wouldn't be moving and we would always be sleeping.
