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marshall27 [118]
2 years ago
10

What motivates Pacific salmon to migrate? And give two obstacles they face during migration.

Biology
1 answer:
Naya [18.7K]2 years ago
6 0
The pacific salmon is motivated by the massive feeding and potential growth by nutrients in the sea. One obstacle that they would face is the time of the journey and the predators along the way.
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Dispersal

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Which of the following organisms arose during the Mesozoic Era? a. mammals c. insects b. birds d. salamanders
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<h2>Answer:</h2>

The Mesozoic era is featured by the arousal of <u>b. birds</u>.

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The Mesozoic Time is the age of the dinosaurs and kept going nearly 180 million a long time from around 250 to 65 million a long time back. It includes periods called the Triassic, Cretaceous, and Jurassic periods. A mass-extinction stamped the starting and conclusion of the Mesozoic Period. The occasion that caused the move from the Paleozoic time to the Mesozoic period was the most prominent termination this soil has seen.  

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