The earliest precursor cells that give rise to blood cells are
A) angioblasts.
B) hemangioblasts.
C) reticulocytes.
D) lymphoid stem cells.
E) osteoblasts.
Answer: B
Anatomy & Physiology
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Indicate whether the statement is true or false
Anatomy & Physiology
Which of the following factors is the most potent stimulus for inhibition of gastric motility?
a. fat in the duodenum. b. acid in the duodenum. c. acid in the stomach. d. distention of the stomach. e. hypertonicity of the duodenal contents.
Anatomy & Physiology
Temperature has no effect on diffusion rate
a. True b. False Indicate whether the statement is true or false
Anatomy & Physiology
Which of the following lists contains only trace elements?
A) sulfur, chlorine, oxygen B) selenium, hydrogen, calcium C) boron, oxygen, carbon D) silicon, fluorine, E) cobalt, calcium, sodium
Anatomy & Physiology