Biology, 30.09.2019 23:30 camrynhelm8278

Which sentences describe functions of the immune system? choose all answers that are correct. a. bones produce extra white blood cells to increase its defense against germs. b. the body filters the blood for waste materials. c. cell membrane keeps germs from entering the cell. d. lymphocytes create antibodies that attach to the germ.

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Which sentences describe functions of the immune system? choose all answers that are correct. a. bo...