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How much of the Earth’s water is usable as a freshwater resource? a. 75% b. 3% c. 100% d. 25%
b. 3%
Expert answered|robDess|Points 50|
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Asked 4/22/2013 3:02:31 PM
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Which of the following is a function of the digestive system? a. digesting food into larger molecules c. helping in the production of food b. breaking down food into smaller molecules d. bringing oxygen to the cells
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Updated 6/9/2015 8:07:38 AM
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Breaking down food into smaller molecules is a function of the digestive system.
Added 6/9/2015 8:07:38 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [6/9/2015 8:20:16 AM]
Which of the following is NOT part of the human digestive system? a. mouth c. esophagus b. pharynx d. gizzard
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Updated 12/28/2015 6:51:33 AM
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Gizzard is NOT part of the human digestive system.
Added 12/28/2015 6:51:33 AM
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In what structure in the figure above do filtration and reabsorption occur? a. kidney c. urinary bladder b. renal vein d. ureter
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The functioning units of the kidneys are the nephrons.
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