As juveniles. As adults, hydra become sessile and fasten to rocks. "Nekton" are creatures that swim, like fish.
yes jellyfish are nektons because it move freely any thing that move freely in the ocean is a nekton.
nektons
Clownfish dwell on the very bottom of the ocean, making them benthic.
Hydra or Hydra
all kids of fish are nektons
I am 99% sure that stingrays are nektons
Hydra is an animal. Animals never have chloroplasts
In hydra -_-
hydra
A hydra does not have cephalization.
no,hydra have no organ
No a hydra is not a fish. A fish is a vertebrate. A hydra is much more primitive.