Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 25.3, Problem 1TC
With regard to water regulation (maintaining the proper amount of water in the body), how does the challenge faced by a freshwater fish differ from that faced by a saltwater fish?
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The bodily fluids of freshwater fish contain higher concentration of dissolved solids in their surroundings, so they tend to bloat (take in water) or lose electrolytes. How can freshwater fish avoid this? 1.) By drinking lots of water? 2.) By actively transporting ions out from the gills into the water? 3.) by excreting highly concentrated urine? 4.) by resorbing ions in nephrons
What are the osmotic challenges faced by marine animals like fish? Describe how they cope with these challenges to maintain solute and water balance in their tissues.
How do the kidneys maintain blood pH?
Group of answer choices
by releasing buffers
by excreting H+ ions
by changing breathing rate
by excreting glucose
Which of the following signals the central nervous system to initiate urination?
Group of answer choices
Stretch sensors in the urinary bladder send out signals when it reaches a certain fullness
The excretory centre rhythmically signals the urinary bladder to contract
Stretch sensors in the kidneys send out signals when it reaches a certain fullness
Increased production of aldosterone signals the urinary bladder to contract
Chapter 25 Solutions
Biology
Ch. 25.1 - describe the features that distinguish chordates...Ch. 25.2 - Prob. 1CSCCh. 25.2 - name and describe the chordates that are not...Ch. 25.2 - name and describe the craniates that are not...Ch. 25.2 - describe the key adaptations of vertebrates?Ch. 25.3 - Most sharks avoid humans, but large sharks of some...Ch. 25.3 - With regard to water regulation (maintaining the...Ch. 25.3 - Prob. 2TCCh. 25.3 - Consider the graph shown in Figure E25-2. Imagine...Ch. 25.3 - Prob. 4TC
Ch. 25.3 - describe the key features of lampreys,...Ch. 25.3 - name and describe the main subgroups included...Ch. 25.3 - Prob. 1CTCh. 25 - The two groups of mammals with the largest number...Ch. 25 - Prob. 2MCCh. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Prob. 1FIBCh. 25 - Prob. 2FIBCh. 25 - Prob. 3FIBCh. 25 - Prob. 4FIBCh. 25 - Prob. 5FIBCh. 25 - Briefly describe each of the following...Ch. 25 - Prob. 2RQCh. 25 - List four distinguishing features of chordates.Ch. 25 - Prob. 4RQCh. 25 - List the adaptations that distinguish reptiles...Ch. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Prob. 1ACCh. 25 - Prob. 2AC
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- Given the following water transfer rates (in g H20 per 100 calories), what would be the water balance for a kangaroo rat? Ingestion 0.1; Metabolism 13.4; Secretion 4; Evaporation = 11 O 15 O -1.5 O 15arrow_forwardCompare and contrast ion and water balance in animals that use protonephridia, metanephridia, and kidneys. Which of the 6 functions of a vertebrate kidney are accomplished by each, and how do they achieve these functions?arrow_forwardWhich of the following describes the countercurrent mechanism of the nephron loop? * Water moves in the ascending limb; sodium moves out of the ascending limb. Water moves out of the descending limb; sodium moves out of the ascending limb. Water moves in the descending limb; sodium moves out of the descending limb. Water moves in the ascending limb; sodium moves in the ascending limb. Water moves out of the ascending limb; sodium moves in the ascending limb.arrow_forward
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