BIOLOGY >PRINT UPGRADE<
BIOLOGY >PRINT UPGRADE<
11th Edition
ISBN: 9780357091586
Author: Solomon
Publisher: CENGAGE L
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Chapter 48, Problem 15TYU

EVOLUTION LINK The number of protonephridia in a planarian is related to the salinity of its environment. Planaria inhabiting slightly salty water develop fewer protonephridia than those inhabiting less salty water, but the number of protonephridia quickly increases when the concentration of salt in the environment is lower. How is this increase adaptive? Explain.

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BIOLOGY >PRINT UPGRADE<

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