Exposure to ionizing radiation may
A. cause cancer.
B. interfere with normal growth.
C. cloud the lens of the eye.
D. All of the answer choices are correct.
Answer: D
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If the medulla of a lymph node is damaged, what components of the lymphoid system will be affected?
A) B cells B) NK cells C) T cells D) None; this region does not produce any types of lymphocytes. E) All of the answers are correct.
A deficiency in the number and/or percentage of red blood cells and the amount of hemoglobin in the blood is called _____.?
A) ?anemia B) ?aplastic anemia C) ?pernicious anemia D) ?sickle cell anemia
The basal nuclei include the ________.
A. supraoptic nucleus B. reticular formation C. corpus striatum D. All of the choices are correct.
Erythropoiesis is stimulated when
A) oxygen levels in the blood increase. B) oxygen levels in the blood decrease. C) blood flow to the kidney declines. D) both oxygen levels in the blood increase and blood flow to the kidney declines. E) both oxygen levels in the blood decrease and blood flow to the kidney declines.