Seasonal affective disorder occurs in individuals who are sensitive to overproduction of ____
a. prolactin
b. melanin
c. aldosterone
d. melatonin
d
Anatomy & Physiology
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Down-regulation may allow a target cell to
A) decrease the receptors' binding affinity and increase its number of receptors. B) only increase its binding affinity for a ligand. C) only decrease its number of receptors for a ligand. D) only increase its number of receptors for a ligand.
Anatomy & Physiology
List 3 tail fin shapes
What will be an ideal response?
Anatomy & Physiology
Into which structure does most reabsorption occur?
a. proximal tubule b. glomerulus c. distal tubule d. loop of Henle e. none of these
Anatomy & Physiology
Why does the left ventricle have a thicker myocardial wall?
A. It has to pump blood to the body. B. It has to pump blood to the left atrium. C. It has to pump blood to the lungs. D. It has to pump blood to the liver.
Anatomy & Physiology