Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 30, Problem 9RQ
Summary Introduction
To compare and contrast: Protonephridium and metanephridium structurally and functionally.
Introduction: Nephridium is considered as the most common type of excretory organ. Nephridium is a tubular structure designed to maintain adequate osmotic balance. A flame cell system of acoelomates and pseudocoelomates is one of the simplest arrangements.
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Chapter 30 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 30 - Define homeostasis. What evolutionary advantages...Ch. 30 - Describe the physiological challenges confronting...Ch. 30 - Distinguish the terms in the following pairs:...Ch. 30 - Young downstream salmon migrants moving from their...Ch. 30 - Most marine invertebrates are osmotic conformers....Ch. 30 - Prob. 6RQCh. 30 - In what animals would you expect to find a salt...Ch. 30 - Prob. 8RQCh. 30 - Prob. 9RQCh. 30 - Prob. 10RQ
Ch. 30 - In what ways does the nephridium of an earthworm...Ch. 30 - Prob. 12RQCh. 30 - Explain how the cycling of sodium chloride between...Ch. 30 - Explain bow antidiuretic hormone (vasopressin)...Ch. 30 - Prob. 15RQCh. 30 - Large mammals live successfully in deserts and in...Ch. 30 - Prob. 17RQCh. 30 - Prob. 1FFT
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- How do nephridia of annelids compare to the flame ceels of flatworms and the nephridia of brachiopods?arrow_forwardThe excretory structure of the earthworm is, 1. A protonephridium 2. An ananephridium 3. A metanephridium 4. A telonephridiumarrow_forwardHow are nephridial organs and Malpighian tubules alike? How are they different? (Hint: Consider both structure and function.)arrow_forward
- How many types of nephridia are found in earthworm based on their location?arrow_forwardWhat is the locomotion in pelagic urochordatearrow_forward11) how do marine fish perform osmoregulation? A) through gaining water through the gills B) through gaining salt through the gills C) Through drinking water and eating food D) through excreting large amounts of dilute urine arrow_forward
- The function of the contractile vacuole in many freshwater protozoans is to: a) aid in mechanical digestionb) store carbon dioxidec) eliminate wastes such as ammoniad) eliminate excess waterarrow_forwardDescribe the differences between protonephridia and metanephridia. Give an example of any animalthat possesses either of these structures.arrow_forwardDraw the structure of nephridial system in earthworm?arrow_forward
- Regarding the function of nephrozoan nephridia, would you expect the final urine of a freshwater species to contain more or less water than the final urine of marine species? Explain.arrow_forwardDifferentiate between free, adnexed, adnate, decurrent, and emarginate gills. Define marginate gills and "waxy" with respect to gill thickness. Differentiate between the partial veil (annulus) and the universal veil (volva). Define germ pore. Differentiate between amyloid, dextrinoid (pseuodamyloid), and inamyloid reactions. Describe the reactions that result in cyanophilous structures and metachromatic structures. Describe the mitic system of mushrooms. Define cystidium and identify cystidia by their location in a mushroom using the terms pileocystidium, caulocystidium, pleurocystidium, or cheilocystidium. Describe and differentiate among the four basic arrangements of the gill trama. Differentiate between a derm and a cutis in the pileipellis.arrow_forwardName the excretory organs in Platyhelminthes.arrow_forward
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