The hormone that acts to oppose the effects of calcitonin is
A) secreted by the thyroid glands.
B) parathyroid hormone.
C) secreted by the thymus.
D) triiodothyronine.
E) growth hormone.
B) parathyroid hormone.
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Within a single protein, which of the following are you likely to find?
A. Disulfide bridges B. Ionic bonds C. Hydrogen bonds D. Hydrophobic interactions E. You are likely to find all of these within a single protein.
Which of the following is not a cause of bleeding disorders?
A) thrombocytopenia, a condition of decreased circulating platelets B) excess secretion of platelet-derived growth factor (PDGF) C) a defect in the clotting cascade D) vitamin K deficiency
What destroys the zona pellucida sperm-binding receptors?
A) the acrosomal reaction B) human placental lactogen C) the process of capacitation D) zonal inhibiting proteins
The __________ consists of the brain and spinal cord.
A. central nervous system B. peripheral nervous system C. all of the above