Label the parts of the human digestive system below and indicate the functions of these organs and glands.
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Label the parts of the human digestive system below and indicate the functions of these organs and glands.
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Earthworms, which are substrate feeders,
a. Feed mostly on mineral substrates.
b. Filter small organisms from the soil.
c. Are bulk feeders that ingest large pieces of food.
d. Eat their way through the soil, feeding on partially decayed organic matter.
The energy content of fats
a. Is released by bile salts.
b. Is, per gram, twice that of carbohydrates or proteins.
c. Cannot be dissolved in water and so cannot be absorbed.
d. Is usually healthier than the energy content of carbohydrates.
Which of the following vitamins is mismatched with the disease that results from its underconsumption?
a. Vitamin B6—Beriberi
b. Vitamin C—Scurvy
c. Vitamin A—Vision loss
d. Vitamin D—Rickets