keanagalvez2 keanagalvez2

30-04-2021
Biology

contestada

When did the Paleozoic Era begin?

66 million years ago

400 million years ago

4 billion years ago

550 million years ago

Respuesta :

maheshsinghmeenu maheshsinghmeenu

30-04-2021

Explanation:

550 million years ago....

Hope it helps

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