Isomers of the same molecule have identical chemical properties.
Indicate whether this statement is true or false.
FALSE
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A stem cell divides to give rise to two differentiated cells.
Answer the following statement true (T) or false (F)
The largest collection of lymphoid tissue in the body is contained within the __________.
a. lymphatic nodules b. thymus gland c. adult spleen d. tonsils
If a person is hypoventilating, then:
A. The partial pressure of CO2 is decreasing in the blood B. More oxygen will be able to bind to hemoglobin C. The rate at which carbonic acid dissociates into hydrogen and bicarbonate increases D. The rate at which carbonic acid dissociates into water and CO2 increases E. The pH of cerebrospinal fluid increases
After initial entry of bacteria into a cut in the skin, vasodilation of local blood vessels and increased capillary permeability occur. Which of the following events is NOT part of the adaptive immune response to the infection?
A. antigen interaction with lymphocytes B. production of antibodies that bind to antigens C. B-cell differentiation into plasma cells D. vasodilation of local blood vessels E. activation of lymphocytes