What type of immunity provides lifetime protection for the body against a specific pathogen?


A.

active immunity


B.

incomplete immunity


C.

complete immunity


D.

passive immunity


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Which statement best describes one way that both plants and animals fight pathogens?


A.

Both have an antigen–antibody response.


B.

Both have a protective outer layer.


C.

Both produce lymphocytes.


D.

Both have a lymphatic system.