Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 45.3, Problem 1CC
Smooth, polished stones have been found in the stomach region of fossilized skeletons of ancient sauropod dinosaurs. What does this discovery suggest about the alimentary canal of such animals?
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Chapter 45 Solutions
Biology
Ch. 45.3 - Smooth, polished stones have been found in the...Ch. 45.3 - Prob. 2CCCh. 45.4 - Prob. 1CCCh. 45.4 - Prob. 1BCCh. 45.5 - Prob. 1BCCh. 45.6 - Prob. 1EQCh. 45.6 - CoreSKILL Did the results support the hypothesis?...Ch. 45.6 - Prob. 3EQCh. 45 - Prob. 1TYCh. 45 - Prob. 2TY
Ch. 45 - Prob. 3TYCh. 45 - Which of the following statements is true? a....Ch. 45 - Prob. 5TYCh. 45 - Which of the following statements regarding the...Ch. 45 - Prob. 7TYCh. 45 - In birds, the secretion of acid and pepsinogen...Ch. 45 - In many vertebrates, bile is produced by the...Ch. 45 - Prob. 10TYCh. 45 - Prob. 1CQCh. 45 - Prob. 2CQCh. 45 - Core Concept: Structure and Function Describe the...Ch. 45 - Prob. 1COQCh. 45 - Define nutrient. On the basis of that definition,...
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- Explain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardName the layer and sublayer of the alimentary canal wall that houses the capillaries into which nutrients are absorbed.arrow_forwardExplain and differentiate the process of digestion of food in humans, chicken and goat.arrow_forward
- Many species of hindgut fermenters, including horses, eat their feces to a greater extent when they have protein insufficiency than when they have plenty of protein. How might increased fecal consumption help?arrow_forwardWhich of the following words is missing in the following sentence: Parietal cells in the gastric glands in the pylorus part form _______________________ which binds to vitamin ____________ so that it can be more easily taken up in the ileum. a) mucus; C b) intrinsic factor; B12 c) pepsinogen; C d) pepsinogen; B12 e) intrinsic factor; Carrow_forwardWhat are the basic layers of the wall of alimentary canal?arrow_forward
- Explain why the pancreas is considered to be both an endocrine and an exocrine gland. How does the pancreas contribute to digestion?arrow_forwardWhile there are numerous structural similarities among the major histological tissues of alimentary canal organs, there are also unique characteristics in specific organs. Which of the following descriptions of the tissue layers contains inaccurate information? O A. The muscularis externa layer in the stomach is unique because it contains 3 layers of smooth muscle instead of just 2. O B. The submucosa in the esophagus is unique because it has esophageal glands that secrete a lot of mucus. OC The mucosa layer in the stomach is unique because it contains complex gastric pits with chief cells (that produce enzymes), parietal cells (that secrete acid), and enteroendocrine cells (that secrete digestive hormones). O D. All the other choices have no inaccurate information. O E. The mucosa layer in the small intestine is unique because it is responsible for the majority of chemical digestion and nutrient absorption. It has a brush border, and multiple structures to increase surface area…arrow_forwardConsider the overall goal(s) of the digestive system. a) Describe the major goal(s) of the digestive system: b) What are the differences between mechanical and chemical digestion, what is each used for? c) Walk through the basic process of digestion, specifically in chordates, from beginning to end. What structures help to accomplish these processes?arrow_forward
- What is the function of the sodium bicarbonate in the small intestine? Why is this important?arrow_forwardDigestion begins in ............ and ends in ...........arrow_forwardWhich of the following best describes the function of othe mesentery in the digestive system? a.) Suspending the digestive tract from the abdominal wall and housing blood vessels and nerves to support the digestive tract. b.) Absorbing nutrients from the intestines c.) Controlling whether the mouth is open to the esophagus or the trachea. d.) Conducting peristalsis and segmentation to ensure that food perticles are mixed.arrow_forward
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