Which of the following is not involved in blood calcium homeostasis?
A. bones
B. kidneys
C. parathyroid glands
D. thyroid gland
E. posterior pituitary
Answer: E
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Organisms that take up inorganic nutrients and convert them to organic molecules such as carbohydrates and proteins are called _______________
A. predators B. consumers C. herbivores D. primary producers E. heterotrophs
HeLa cells allowed a formal identification of
the causative agent of
a. cholera. b. polio. c. chickenpox. d. Lassa fever. e. smallpox
What types of genes are transcribed by RNA polymerase III? What types of promoters do these genes have?
What will be an ideal response?
What is the underlying problem in most acquired immunodeficiencies?
A. declining cell-mediated immunity B. declining humoral immunity C. production of autoantibodies D. eosinophilia E. anemia