Where does the majority of nutrient absorption occur?
A. the stomach and duodenum
B. the duodenum and ileum
C. the jejunum and duodenum
D. the ileum and jejunum
C
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Lymphocytes and monocytes both arise from:
A) the lymphoid cell line. B) myeloblasts. C) the myeloid cell line. D) hematopoietic stem cells (HSCs).
Upon fertilization, an oocyte completes its second meiotic division and produces ________
A) the corona radiata and a polar body B) the morula and blastocyst C) the ovum and another polar body D) the primary oocyte and secondary oocyte
The cell body of a neuron is also called a/an ________.
A. neurosoma B. dendrite C. nerve fiber D. neuroglia
High carbon dioxide levels and low pH in blood of the carotid arteries will stimulate
A. baroreceptors to activate the vasomotor center. B. chemoreceptors to activate the vasomotor center. C. baroreceptors and chemoreceptors to activate the cardioinhibitory center and inhibit the vasomotor center. D. baroreceptors to activate the cardioinhibitory center and inhibit the cardioacceleratory center. E. chemoreceptors to inhibit the vasomotor center.