Hybrids between grizzly and polar bears have been moving farther north. What do you predict about the migration of their hybrid zone over time?
A.
It will eventually completely overlap with the range of polar bears.
B.
It will eventually completely overlap with the range of grizzly bears.
C.
It will continue to move north as the more aggressive grizzly bears take over territory from the polar bears.
D.
It will change or remain the same in response to the environmental factors that contribute to the well-being of grizzly and polar bears.
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