Principles of Biology
Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 37, Problem 3TY
Summary Introduction

Introduction:

The vertebrate digestive system is made up of the alimentary canal which consists of mouth, pharynx, esophagus, stomach, small and large intestines, and anus. The alimentary canal is one continuous tube that changes in structure and function along its length.

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Which of the following is NOT a regulatory mechanism for digestion? Only carbohydrates are digested in the oral cavity. Hormones are secreted at various stages of digestion pH of the digestive tract is altered by the release of bicarbonates to the GI tract. Enzyme activation is effected by autocatalysis of zymogens. Cells and different organ systems are involved in the digestion of foodstuffs.
Which of the following is true of an incomplete digestive tract?     Food moves in one direction as it is processed.     Both a mouth and anus are present.     It can be specialized for digestion in different groups of animals based on diet.     A single opening functions in ingestion and eliminaton.
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Human digestive system - How it works! (Animation); Author: Thomas Schwenke;https://www.youtube.com/watch?v=X3TAROotFfM;License: Standard Youtube License