rinozeraioxp9qe rinozeraioxp9qe

12-10-2017
Biology

contestada

explain why the emergence of alga was required before animals could exist on the planet

Respuesta :

kirkmer03 kirkmer03

12-10-2017

Because the sun was a deadly laser. The ozone layer didn't exist yet, so the sun produced too much radiation for life above the water to possible.

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