Which of the following secondary lymphoid organs or tissues filters blood and traps blood-borne microorganisms and antigens?

A) Lymph nodes
B) Lymphoid tissues
C) Spleen
D) All of the above


Ans: C) Spleen

Biology & Microbiology

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Indicate whether the statement is true or false

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A. the chromosome. B. a plasmid. C. three separate plasmids. D. nuclear membrane.

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Rank, from low to high, the pH of blood, stomach acid, and urine

A) blood, urine, and stomach acid B) stomach acid, blood, and urine C) urine, blood, stomach acid D) stomach acid, urine, blood

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Which of these equations describes aerobic cellular respiration?

A) glucose ? lactic acid + energy B) energy + carbon dioxide + water ? glucose + oxygen + water C) glucose + oxygen ? carbon dioxide + water + energy D) none of the above

Biology & Microbiology