1) what is one type of white blood cell that participates in the specific immune response called?

a) antigens

b) antibodies

c) macrophages

d) pathogens

2) 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.

1. Antigen is the one type of white blood cell that participates in the specific immune response. The correct option among all the options that are given in the question is the first option or option "A".

2. "Both have a protective outer layer" is the statement that describes one way that both plants and animals fight pathogens. The correct option among all the options that are given in the question is the second option or option "B".