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Effectus [21]
3 years ago
15

Of all the species that have ever lived on planet earth, what percentage are now extinct?

Biology
1 answer:
erica [24]3 years ago
4 0
I think it's 90% but I am not sure.
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What are the similarities in the way a barchan forms and the way a hooked spit forms?
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Second, hooked spits are formations that happen after sea movement displaces the sediment to create a curved structure that can only exist in the sea. These formations affect the strength and direction of the waves in the sea due to their curved form.

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