Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 44 - 44.4 - Concept Check - Page 990: 1


Freshwater fish have more and longer glomeruli. Saltwater fish typically have fewer and shorter glomeruli.

Work Step by Step

Freshwater fish are all osmoregulators, meaning they have a greater need for their kidneys to be able to create a specific blood electrolyte concentration that is different from their environment. Saltwater fish have body fluid concentrations more similar to their environments and have less need for strict regulation via the kidneys.
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