Science, asked by AaliyaBehlim, 4 months ago

Vaccines work based on

Select one:

A. Blood movement in the body.

B. Memory of an pathogen

C. Physical nature of the body.

D. Memory of an immune system

Answers

Answered by srushtig0507

2

Answer:

blood movement in the body

Explanation:

pls mark me as brainliest

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