Biology, 15.01.2020 08:31 jholland03

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16.
antibodies destroy pathogens by

binding to antigens on the pathogens

destroying phagocytes

breaking the cell membranes of pathogens

infecting t cells

17.
the role of the respiratory system is to bring what substance into the body?

red blood cells

carbon dioxide

oxygen

water

18.
which keep pathogens from entering the body through the breathing passages?

cilia and mucus

phagocytes and lymphocytes

oil and sweat

saliva and acid

19.
is part of the first line of defense against pathogens.

inflammation

skin

b cells

t cells

20.
which substances are produced during respiration?

oxygen and red blood cells

carbon dioxide and water

carbon dioxide and red blood cells

water and oxygen

21.
use the diagram to answer the question.

which describes structure e?

the diaphragm, which contracts to expel air from the lungs

the lungs, which contain alveoli for gas exchange

the lungs, which expand and contract during breathing

the diaphragm, which contracts to allow air to enter the lungs

22.
an infectious disease is

not able to be cured

caught because the weather turns cold

caused by pathogens

spread only by bacteria

23.
which kind of pathogen causes athlete’s foot?

fungi

bacteria

viruses

protists

24.
what type of white blood cells are part of the inflammatory response?

b cells

t cells

cilia

phagocytes

25.
under normal conditions, which of the following substances is found in urine?

glucose

urea

protein

blood cells

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