Question

What provides active defense against pathogens? And why?

Answer 1

ANSWER:
The innate immune responses are the first line of defense against invading pathogens. They are also required to initiate specific adaptive immune responses. Innate immune responses rely on the body's ability to recognize conserved features of pathogens that are not present in the uninfected host.

Answer 2

Antibodies play a role in eliminating infectious pathogens, preventing the hematologic spread, and providing future protection if re-exposed. Active immunity utilizes cytotoxic T lymphocytes, TH1, TH2 cells, and activated B cells to target infections from multiple angles.

Step-by-step explanation: