Explain the function of digestive systems

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Chapter 41 (Digestive Systems)

1. Explain the function of digestive systems.

2. List the major types of nutrients animals obtain from their diets.

3. Describe the difference between incomplete and complete digestive tracts, give examples of organisms that have each type, and explain why complete digestive tracts allowed for specialization of digestive organs.

4. Define peristalsis.

5. Define herbivore, carnivore, and omnivore and describe differences in the GI tracts that represent adaptations to each type of diet.

6. Describe the function of each of the following parts of vertebrate digestive systems: oral cavity, pharynx, esophagus, stomach, small intestine, large intestine, and the accessory organs (pancreas, liver, gallbladder).

7. Describe the functions of teeth, tongues, and salivary glands. Give examples of teeth and tongue adaptations to diet.

8. Describe the function of the following esophageal and stomach specializations and the types of organisms that have these structures: crop, proventriculus, gizzard, ruminant stomach.

8. Explain why the small intestine has adaptations for increased surface area.

9. Explain why the cecum of certain herbivores is much larger than that of humans.

Reference no: EM133935211

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