Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Chapter 47, Problem 5S
Summary Introduction
To explain:
How birds digest different food given they lack teeth like mammals.
Introduction:
Birds have two chambered stomach. One of the chambers is called the glandular stomach (proventriculus) and is similar in function to the mammalian stomach. The other chamber is called the gizzard (muscular stomach).
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Chapter 47 Solutions
Biology
Ch. 47 - How is the digestion of fats different from that...Ch. 47 - Although the stomach is normally thought of as the...Ch. 47 - After being absorbed through the intestinal...Ch. 47 - Which of these pairings is incorrect? a. Fat...Ch. 47 - Intestinal microorganisms aid digestion and...Ch. 47 - Prob. 6UCh. 47 - Which of the following represents the action of...Ch. 47 - Prob. 1ACh. 47 - The primary function of the large intestine is to...Ch. 47 - Inactive forms of some molecules are secreted a....
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- Vertebrates have a complete digestive system, which means that their digestive tract has two openings, a mouth and an anus. What are some of the evolutionary advantages among animals with a complete digestive tract?arrow_forwardHow does human anatomy indicate that our primate ancestors were not strict vegetarians?arrow_forwardThe two types of digestion that take place in mammals isarrow_forward
- In what ways do the pig’s teeth seem to be adapted to its diet?arrow_forwardChoose is constructing a diagram of the digestive tract of cattle. Her diagram includes a rumen, which is a pouch-like extension of the esophagus. Which addition to the diagram would be most useful to model the function of the rumen in food digestion?arrow_forwardBiologists estimate that carnivores assimilate 90% of the mass in theirdiet; in contrast, most herbivores assimilate only 30% to 60% of theirfood. How do these differences in assimilation efficiency relate to thestructure of their digestive systems?arrow_forward
- Some animals, such as rabbits, whose digestive systems include hindgut fermentation, re-ingest the products of digestion. What function do you think this serves?arrow_forwardMany digestive enzymes are synthesized in the pancreas and released into the duodenum. Why do mammalian digestive systems go to the trouble of producing pepsin in the stomach? What does pepsin do that others do not?arrow_forwardExplain in your own words: What are the unique anatomical structures observed in birds to carry out thefunctions of digestion? Elaborate on these unique structures and provide reasons for theappearance of these unique structures.arrow_forward
- Compare and contrast the structure and function of the digestive systems in bony fish, amphibians, and mammals.arrow_forwardwhy are Ruminants able to thrive even if they do not get all the essential nutrients in their diets, while mono-gastric animals are not so fortunate and will show signs of malnutrition if these nutrients are not in their feed?arrow_forwardConsider the following image of the teeth in the lower jaw of select primates. What does the size and shape of teeth say about the diets of each primate?arrow_forward
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