"Mad cow disease" (variant Creutzfeldt-Jakob disease) is caused by a
A. prion.
B. bacterium.
C. fungus.
D. virus.
E. protozoan.
Answer: A
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Which type of cells recycle the calcium and phosphate stored there?
A) bone cells B) fat cells C) muscle cells D) nervous cells E) blood cells
The membrane lining the abdominal cavity and covering the surfaces of its organs is the ________.
A. pericardium B. pleura C. meninges D. peritoneum
What is the function of the foramen ovale during fetal life?
a) Allowing blood to flow directly from the right atrium into the left atrium. b) Allowing blood to flow directly from the right ventricle into the left ventricle. c) Serves as a valve in the vena cava to regulate venous blood flow. d) Prevents back flow of blood from aorta into the left ventricle. e) Prevents back flow of blood from pulmonary trunk into the right ventricle.
Graves' disease is a condition in which some of the body's antibodies mimic thyroid-stimulating hormone and cause overactivity of the thyroid gland. What consequences would this have for neurons in the body, and how would metabolic rate be affected?
Would you expect someone with Graves' disease to feel chillier or warmer than someone who was unaffected? What will be an ideal response?