1 point Q.2 Which was the first animal to evolve on the earth ? Verebrates Inveretebrates Arthropods Aves
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1st organism that evolve on earth was a invertebrate microorganism. It was produced due to very suitable climate, warm temp., humid surface, by the action of many oxides but absence of oxygen, the micro organism was produced.
Further by joining together, they form bigger and bigger organisms
1st organism was a sea micro organism.
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