Respuesta :

Answer:

They release antibodies to protect the body. They produce antigens to protect the body. They break down the pathogens that enter the body. They respond to a future invasion of the same type of pathogen.

Explanation:

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        - pun

               

Answer:

With Acid

Explanation:

The first line of immune defense against invading pathogens like bacteria are macrophages, immune cells that engulf every foreign object that crosses their way. After enclosing it in intracellular membrane vesicles, a process called phagocytosis, macrophages kill their prey with acid.