Jellyfish and other multi-cellullar organisms evolved during the Cambrian era.
tentacool evolve lvl.30 togepi evolve lvl.30 kirlia evolve lvl.30 dratini evolve lvl.30
The present.
Jellyfish are, compared to mollusks, arthropods and vertebrates, very simple organisms. Jellyfish did not evolve a circulatory system, as they can perform gas exchange at their outer surfaces.
Cenozoic era
Jellyfish intervirbrates
Jellyfish were not even alive during the Precambrian era because only single-celled organisms lived.
Paleocene Epoch
No. In the Bambrian Era, dinosaurs had yet to evolve.
I you type in homer evolution on youtube, this will make total sense Tiny little cell divide Become stuff like jellyfish jellyfish evolve into fish fish evolve into amphibian amphibian evolve into lizard lizard evolve into dinosaur small dinosaur evolve into rat rat dig burrow when dinosaurs die rat turns into possum possum turn into monkey monkey turn into ape ape evolve into prehuman prehuman evolve into caveman caveman evolve into modern human watch Homer Evolution and you'll get it
what era did the gnetophyta evolve.
Jellyfish are, compared to mollusks, arthropods and vertebrates, very simple organisms. Jellyfish did not evolve a respiratory or an excretory system, as they can perform gas exchange at their outer surfaces.
In the Mesozoic Era, during the cretaceous period