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kramer
2 years ago
5

PLEASE HELPP!!

Biology
2 answers:
ArbitrLikvidat [17]2 years ago
6 0

Answer:

u could say c or d

Explanation:

densk [106]2 years ago
6 0

Answer:

B

Explanation:

A vaccine exposes a person to a dead or weakened version of a pathogen which results in the production of the appropriate antibody that protects against future infection.

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