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How do you tell if physicalchange has occurred?
a. it cannot be reversed.
b. a new substance appears.
c. no new substance is produced.
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Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5
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What is the difference between how ionic and covalent bonds form
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When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?
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The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the womanโs offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction
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How do you tell if physicalchange has occurred?
a. it cannot be reversed.
b. a new su...
a. it cannot be reversed.
b. a new su...
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