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Plant Sciences, Zoology & Evolution / Re: Which evolved first, the human skin, blood, or the human heart?
« on: 09/06/2018 14:13:09 »
Ignore all previous answers citing DNA. Skin is found on archaea/Neomura which predates the heart or blood.
Blood is found in bacteria which predate the heart. The heart is only necessary in lifeforms larger than 7mm.
Blood is found in bacteria which predate the heart. The heart is only necessary in lifeforms larger than 7mm.