Which of the following is the large lymphoid organ in the abdomen that produces and stores large amounts of white blood cells?
Answer: spleen
Biology & Microbiology
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Diseases constantly present in a population are called
A. epidemic. B. chronic. C. latent. D. endemic.
Biology & Microbiology
Exchange of gases and metabolites between the blood and tissues occurs in the
A. arteries. B. arterioles. C. capillaries. D. venules. E. veins.
Biology & Microbiology
In summer, a(n) ____________________ prevents upper and lower waters from mixing. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
Circle the phrase in each pair that is likely to occur more rapidly in response to an extracellular signal
A. changes in cell secretion / increased cell division B. changes in protein phosphorylation / changes in proteins being synthesized C. changes in mRNA levels / changes in membrane potential
Biology & Microbiology