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Biology!!! 20 Points!

Biology!!! 20 Points!-example-1
Biology!!! 20 Points!-example-1
Biology!!! 20 Points!-example-2
Biology!!! 20 Points!-example-3
Biology!!! 20 Points!-example-4
Biology!!! 20 Points!-example-5
User Kobojunkie
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1 Answer

3 votes

Answer:

A

Step-by-step explanation:

They inject the bacteria into you so your body can learn how to fight it off.

User Ruslan Plastun
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