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Salmon Hatch in a Freshwater Stream, Migrate to and Live

Question 8

Multiple Choice

Salmon hatch in a freshwater stream, migrate to and live several years in the open ocean, and then migrate back to their natal stream to reproduce. What two mechanisms are thought to be involved in these movements?


A) Sociality and trial-and-error learning
B) Landmark use and solar compass
C) Water currents and temperature
D) Star compass and solar compass
E) Geomagnetic imprinting and olfaction

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