Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. This is an example of a(n):

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#Question id: 11973

#XL - T Zoology

The digestion of ________ begins in the stomach.

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#Question id: 12010

#XL - T Zoology

Precursor to the northern group of continents

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#Question id: 12021

#XL - T Zoology

Nutrient-rich blood from the intestine is carried through the ________ to the liver.

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#Question id: 12022

#XL - T Zoology

The bile salts ________.

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#Question id: 12023

#XL - T Zoology

The absorption of fats differs from that of carbohydrates in that ________.

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#Question id: 12024

#XL - T Zoology

Constipation can result from the consumption of a substance that ________.