Biology
Biology, 01.11.2019 19:31, brae72

Aperson who has a weakened immune system may not be able to fight against infection because?
a. pathogens may enter the body and cause illness.
b. phagocytes many enter the body and cause illness.
c. normal cells crowd out unhealthy cells.
d. of an increase in the production of antibodies.

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Biology, 06.08.2019 01:10, melinalange48
Aperson who has a weakened immune system may not be able to fight against infection because a) pathogens may enter the body and cause illness. b) phagocytes many enter the body and cause illness. c) normal cells crowd out unhealthy cells. d) of an increase in the production of antibodies.
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Biology, 24.08.2019 01:00, hunterthompson2
How does the immune system work together with the circulatory system to function properly? a. the infection site receives oxygen-depleted blood from the circulatory system's arteries, so the immune system works harder. b. pathogens released by immune cells cause increased blood flow to the infection site, which brings other pathogens to the area more quickly. c. red blood cells move through the body (to parts where they are needed) in the blood vessels of the circulatory system to fight infection. d. the white blood cells of the immune system fight and destroy pathogens.
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Biology, 27.08.2019 09:30, unknown9263
How does the immune system work together with the circulatory system to function properly? a. the white blood cells of the immune system fight and destroy pathogens. b. red blood cells move through the body (to parts where they are needed) in the blood vessels of the circulatory system to fight infection. c. the infection site receives oxygen-depleted blood from the circulatory system's arteries, so the immune system works harder. d. pathogens released by immune cells cause increased blood flow to the infection site, which brings other pathogens to the area more.
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