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Which of the following elements is NOT located in Period 3?
A) Lithium
B) Sulfur
C) Argon
Answers: 3
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Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.
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The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.
Answers: 1
Which of the following elements is NOT located in Period 3?
A) Lithium
B) Sulfur
C) Arg...
B) Sulfur
C) Arg...
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