Melatonin is produced by the:
A) kidneys. B) adrenal glands. C) pineal gland. D) heart.
Answer: C
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How would removal of calcium ions from a blood sample affect coagulation?
A) The coagulation pathway would be more sensitive to activation. B) Coagulation would be prevented. C) There would be no important effect because magnesium can substitute for calcium. D) Coagulation would occur only in Rh positive individuals. E) More blood cells would be produced.
Which of the following is not a function of the lymphatic system?
a. defense against disease. b. return of fluid to the circulatory system. c. transport of fat molecules. d. regulation of sodium balance. e. return of proteins to the circulatory system.
Select the correct statement about isotopes.
A) Isotopes of the same element have the same atomic number but differ in their atomic masses. B) All the isotopes of an element have the same number of neutrons. C) All the isotopes of an element are radioactive. D) Isotopes occur only in the heavier elements
One of the functions of synovial fluid is to act as a shock absorber that distributes force evenly across the joint surface.
Answer the following statement true (T) or false (F)