which statement provides the ultimate explaination for the observation that adul
ID: 5994 • Letter: W
Question
which statement provides the ultimate explaination for the observation that adult salmon return from the ocean to spawn in the stream where they hatched?a. young salmon imprint on the chemical scent of their home stream
b. adult salmon use stellar navigation to relocate their home stream
c. salmon navigate to their home stream using their ability to detect Earth's magnetic field
d. spawning in the home stream results in higher survival of young salmon
e. oceanic currents aid salmon in their search for their home stream
Explanation / Answer
D. Spawning in the home stream results in higher survival of young salmon. because salmon is an anadromous (uh-NAD-droh-muhss) fish. This means that it spawns in freshwater but spends much of its life at sea. When an Atlantic salmon reaches the age of two, it leaves its home in the North Atlantic. It begins a migration to the same place in the river or stream where it was born. It spawns and then returns to the ocean for two years. After building up its strength, it leaves the ocean and returns to the rivers to spawn yet again. rate this thanks
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