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Last Universal Common Ancestor

Created for Albert.io. Copyright 2016. All rights reserved.

This, some scientists have argued, is a precipitate and as-yet unfounded claim, especially because of its broader implications: scientists have long-argued about whether life on earth more likely originated in shallow pools of water on land, with the aid of UV rays (14) from the sun; or in the deep, dark, hydrogenated atmosphere of underwater volcanoes.

A

NO CHANGE

B

from the sun. Or in the deep

C

from the sun, or in the deep

D

from the sun or in the deep

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