Which of the following is not a characteristic of the T-Cell line? A. Regulatory (or suppressor) T-cell inhibit the immune response
B. Cells are matured in the thymus gland
C. The cells originate in bone marrow from stem cells
D. T-Helper cells stimulate both the humoral and cell-mediated response

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Which label correctly identifies what x represents in the concept map?