The Cnidarian classification group evolved in about 1824.
Jurassic time period
they evolve threw a PERIOD of time
During classical time period Hinduism was not changed much Religiously. But Hinduism was much changed in arts & sciences.
an everstone does not evolve a Pokemon in fact it forces a Pokemon to not evolve period.
small cnidarians and big cnidarians
They all came at the same time.
Thier prokaryotic origins and their ability to adapt quickly and evolve in a short time period.
Seadra does not evolve into Seaking. Ever. Period.
cnidarians have no nervous system
Yes, cnidarians are invertebrates.
The cnidarians are in the Kindom family
Cnidarians have a radial symmetry.