Pretty sure its d... hope this helps
Answer:
The <u><em>second </em></u>line of defense.
Explanation:
In our bodies the <em><u>second line of defense</u></em> includes active immunity. It contains non-specific immune responses, but yet still contains specific responses for certain things such as inflammatory and fevers.
Answer:
Your correct answer is B.
Explanation:
The answer is Mutualism because they are both benefiting
