In sharks and rays TMAO

a. is present in a 2:1 ratio with urea.
b. counteracts the toxic effect of urea.
c. serves as a hyper-ionic regulator.
d. two of these.
e. all of these.


D

Anatomy & Physiology

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Surface area in the small intestine is increased by ________.

A. microvilli B. villi C. plicae circularis D. rugae

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Explain why a person whose intestinal lining cells continuously "leak" chloride ions into the intestinal lumen experiences dehydration

What will be an ideal response?

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Which of the following are the three unpaired arteries arising from the abdominal aorta?

A. Celiac trunk, superior mesenteric artery, and inferior mesenteric artery B. Lumbar artery, celiac trunk, and gonadal artery C. Renal artery, hepatic artery, and common iliac artery D. Hepatic artery, lumbar artery, and common iliac artery E. Superior mesenteric artery, inferior mesenteric artery, and gonadal artery

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