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Lena [83]
3 years ago
13

How did fishes respond to the two challenges to their survival as predators

Biology
1 answer:
Allisa [31]3 years ago
4 0
They swam faster and learned to hide 
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Mechanical energy materials
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Mechanical energy is one of the only types of energy that is easy to see. If something is moving, it is using mechanical energy! Take a look at these sources of mechanical energy that you're likely to find in the home.

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