Biology

Complex nutrients are digested and then absorbed into the lymph or bloodstream a

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An enzyme with high activity in an acidic environment is A) amylase. B) pepsin.

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The absorption of fats differs from that of carbohydrates in that the A) process

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When the digestion and absorption of organic molecules results in more energy-ri

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PKU (phenylketonuria) is a hereditary condition in which infants and young child

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Coprophagy, the nutrition-boosting ingestion of fecal material, is important for

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An enlarged cecum is typical of A) rabbits, horses, and herbivorous bears. B) ca

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Analysis of jawbones from the skeletal remains of a vertebrate animal reveal its

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Cattle are able to survive on a diet consisting almost entirely of plant materia

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Stomach cells are moderately well adapted to the acidity and protein-digesting a

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Glandular secretions that are released initially as inactive precursors of diges

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For a nondiabetic person, the glucose concentration in this part of the vasculat

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A nutritional monomer that can be transported in the blood after a typical meal

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Which pair correctly associates a biochemical process with the appropriate miner

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You have a freshly prepared 0.1 M solution of glucose in water. Each liter of th

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In a well-fed human eating a Western diet, the richest source of stored chemical

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In the digestive system, peristalsis is A) a process of fat emulsification in th

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Earthworms, grasshoppers, and birds all have a A) gastric cecae. B) larynx. C) c

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An advantage of a complete digestive system over a gastrovascular cavity is that

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The fat-soluble vitamins include A) vitamin A. B) vitamin B12. C) vitamin C. D)

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Which pair correctly associates a physiological process with the appropriate vit

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To maintain adequate nutrition, animals require dietary access to certain amino

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Certain nutrients are considered "essential" in the diets of some animals becaus

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Animals that migrate great distances would obtain the greatest energetic benefit

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After ingestion by humans, the first category of macromolecules to be chemically

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