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Why is the immune system necessary in an organism? A. without it there would be nothing to fight off infection B. it provides structure for the body C. the cells transfer oxygen around the body D. the
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Why is the immune system necessary in

an organism?
A. without it there would be nothing to fight off infection
B. it provides structure for the body
C. the cells transfer oxygen around the body
D. the organs in it help absorb nutrients for the body

User Lingviston
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2 Answers

2 votes

Answer: A

Step-by-step explanation:

User StaticVoidMan
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A-When the immune system is functioning properly, it can fight off disease-causing organisms including bacteria, viruses, and parasites as well as cancer cells while safeguarding healthy tissue.
User Laher
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