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A Researcher Is Investigating the Ability of Salmon to Migrate

question 13

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A researcher is investigating the ability of salmon to migrate thousands of miles in the ocean yet return to spawn to the exact location where they were hatched. Data from experiments suggest that more than one type of homing mechanism may be involved in this behavior. When salmon arrive at a river mouth from the open sea, they appear to use olfactory cues to find their home streams, but how do they find their way back to the correct hatching spot along the coastline from the open ocean?
Several experiments were carried out to test the hypothesis that geomagnetic factors (the influence of Earth's magnetic field) play a key role in the ability of salmon to find the correct hatching location along the coast. In one such experiment, salmon hatched in Ketchikan, Alaska were subjected to the geomagnetic characteristics of a different location on the Alaska Peninsula, Cold Bay. The fish were then released to determine to which of the two locations they would return to spawn.
-If the salmon return to spawn at Cold Bay, the behavior involved is primarily ________, but if they return to Ketchikan, the behavior is primarily ________.


Definitions:

Latino Populations

Communities or demographic groups in the United States consisting of individuals from Latin American countries or backgrounds.

Latino/Hispanic Group

The Latino/Hispanic group refers to people from Spanish-speaking countries, particularly those from Latin America and the Caribbean, living in other parts of the world, often discussed in the context of ethnic classification in the United States.

Pluralism

A theory or system that recognizes the existence of diverse and independent social groups within a society, advocating for their right to coexist and influence public policy.

Elite Theory

A theory suggesting that society is divided between a small ruling elite and the masses, with the elite holding the power and influencing major decisions.

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