The three lines of defense your body has against disease include all except...

A. physical and chemical defenses.

B. inflammation.

C. immune system.

D. scarring.

5 answers

D. scarring.
True or False:

B cells and H cells are two important cells in the immune system that help fight infection.
False. There is no such cell as H cell in the immune system. The correct term is T cells, not H cells.
Antibodies are produced by

A. B cells.

B. T cells.

C. red blood cells.

D. lymph nodes.
A. B cells.