Choose an effective medication and mechanism of action that would reduce the signs and symptoms of seasonal allergies.
A. A medication that blocks the production of IgM.
B. A medication that blocks the production of IgE.
C. A medication that increases the production of serotonin and histamine.
D. A medication increases the population of mast cells.
Answer: B
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Hepatocytes receive blood from both the hepatic artery and the ________
A) Hepatic portal artery B) Hepatic portal vein C) Hepatic vein D) Hepatic capillaries
The ________ node is the pacemaker of the heart.
Fill in the blank(s) with the appropriate word(s).
Negatively charged ions will migrate towards the anode in an electrical field.
Answer the following statement true (T) or false (F)
Hormones can alter cellular operations by changing
A) the activities of enzymes in the cell. B) the quantities of enzymes. C) the types of enzymes in the cell. D) All of the answers are correct. E) None of the answers are correct.