The thick muscular partition that separates the two ventricles entire heart is the
A) interventricular septum.
B) left ventricle.
C) right ventricle.
D) right atrium.
E) left atrium.
A) interventricular septum.
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Describe what is happening in the diagram
What will be an ideal response
Cells normally regulate the rate of an enzymatic reaction by
A) allowing all metabolic enzymes to be found throughout the cytoplasm. B) raising their temperature to 110° F. C) increasing reaction rate as the concentration of product increases. D) changing the concentration of an enzyme.
The last third portion of the large intestine, including the rectum, receives blood from the
A) inferior mesenteric artery. B) superior mesenteric artery. C) celiac trunk. D) left gastric artery. E) lumbar artery.
Chemicals that signal the same cell that made them are called ________ messengers, while those that signal nearby cells are called_____ messengers.
A. paracrine; endocrine B. autocrine; paracrine C. endocrine; pheromone D. allomone; autocrine E. pheromone; prostaglandin