Biology
12th Edition
ISBN: 9780078024269
Author: Sylvia Mader, Michael Windelspecht
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 28, Problem 2TS
Cnidarians such as Hydra have only one opening. which must serve as both mouth and anus. In contrast, most animal species have a one-way, tubelike
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Nutrition and Digestion
Identify the different modes of feeding mechanisms found in the Animal Kingdom, describe each and give 2 example animals for each mode.
Why do Cnidarians, Flatworms and Protists have simple or no extensively developed digestive system? (clue: mention their digestive structure and their mode of feeding)
What are the structural adaptations of snakes that allowed them to eat and digest a whole prey?
Why do insects of one species have a changing diet requirement during their life history?
Different birds have varying food habits, discuss the structural and physiological adaptations that allow them to process these foods.
What are the four stages of the digestive process, describe each stage/step and indicate what are the products/substances produced and their fate?
Discuss the role of the endocrine system in controlling digestion.
(no plagiarism pls, thank u!)
There has been a tendency among invertebrates to evolve extracellular digestion from intracellular digestion. What are the advantages (and disadvantages) of intracellular digestion?
Define the advantage of a digestive system with two openings have relative to digestive systems with only a single opening (like that of the flatworms).
Chapter 28 Solutions
Biology
Ch. 28.1 - Prob. 1CYPCh. 28.1 - Explain the colonial flagellate hypothesis about...Ch. 28.1 - Prob. 3CYPCh. 28.1 - Prob. 4CYPCh. 28.2 - 1. List three ways in which cnidarians are more...Ch. 28.2 - Prob. 2CYPCh. 28.2 - Prob. 3CYPCh. 28.2 - Prob. 4CYPCh. 28.3 - Prob. 1CYPCh. 28.3 - Prob. 2CYP
Ch. 28.3 - Prob. 3CYPCh. 28.3 - Prob. 4CYPCh. 28.4 - Prob. 1CYPCh. 28.4 - List two ways that crustaceans are adapted to an...Ch. 28.4 - Prob. 3CYPCh. 28.5 - 1. Explain why echinoderms and chordates are now...Ch. 28.5 - Prob. 2CYPCh. 28.5 - Prob. 3CYPCh. 28.5 - Prob. 4CYPCh. 28 - Prob. 1BS.1QCCh. 28 - Prob. 1BS.2QCCh. 28 - Prob. 1BS.3QCCh. 28 - Prob. 1E.1QCCh. 28 - Prob. 1E.2QCCh. 28 - Prob. 1E.3QCCh. 28 - Prob. 1ACh. 28 - The phylogenetic tree of animals shows that a....Ch. 28 - Prob. 3ACh. 28 - Prob. 4ACh. 28 - Prob. 5ACh. 28 - Prob. 6ACh. 28 - Prob. 7ACh. 28 - Prob. 8ACh. 28 - Prob. 9ACh. 28 - Prob. 10ACh. 28 - Prob. 11ACh. 28 - Prob. 12ACh. 28 - Prob. 13ACh. 28 - Prob. 14ACh. 28 - Prob. 15ACh. 28 - Prob. 1TSCh. 28 - Cnidarians such as Hydra have only one opening....Ch. 28 - Prob. 3TSCh. 28 - Prob. 4TS
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What advantage does a digestive system with twoopenings have relative to digestive systems with only a single opening(like that of the flatworms)?arrow_forwardTapeworms sometimes infect humans, anchoring themselves to the wall of the small intestine. Based on how digestion is compartmentalized along the mammalian alimentary canal, what digestive functions would you expect these parasites to have?arrow_forwardDoes the type of the diet of the insect affect the structure of organs/parts of the digestive system? Cite at least four structures representing each division of the digestive system and explain such adaptation.arrow_forward
- List a diversity of ways some simple animals obtain nutrition without a complete digestive tractarrow_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_forwardIt’s one question and for each part just need a brief description.arrow_forward
- Compare how the anterior portion of the alimentary canal (from the mouth to the end of the stomach) of the crayfish and the pig carry out mechanical and chemical digestionarrow_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 the presence of specialized digestive organs in the animals studied in this laboratory given that they all have a coelom and a complete digestive system with a separate mouth and anus.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Phylogeny and the Tree of Life; Author: Professor Dave Explains;https://www.youtube.com/watch?v=KLMn4XwS8Tw;License: Standard YouTube License, CC-BY