Among vertebrate animals, urea is ________.
A) made in the kidneys and immediately excreted
B) added to the air in the lungs to be exhaled, along with carbon dioxide
C) made in the liver by combining ammonia molecules or amino groups.
D) made in the pancreas and added to the intestinal contents, along with bile salts, for excretion
E) rarely the nitrogenous waste
Correct Answer:
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Q1: Compared to the seawater around them, most
Q2: One of the waste products that accumulates
Q3: To maintain homeostasis, freshwater fish must _.
A)
Q5: A necropsy (postmortem analysis) of a marine
Q6: When a cell is in equilibrium with
Q7: Ammonia is likely to be the primary
Q10: The body fluids of an osmoconformer would
Q15: The advantage of excreting nitrogenous wastes as
Q16: Organisms categorized as osmoconformers are most likely
A)
Q19: Urea is
A) insoluble in water.
B) more toxic
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