Which line of defense includes active immunity? O first O second O third O fourth

Biology

2 answers:

MrRissso [65]3 years ago

6 0

Answer:

The second line of defense.

Explanation:

In our bodies the second line of defense includes active immunity. It contains non-specific immune responses, but yet still contains specific responses for certain things such as inflammatory and fevers.

Zigmanuir [339]3 years ago

3 0

Answer:

O third

Explanation:

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