Hydra will retract their tentacles into their body stem when touched. This is a response inherent in the plants from many centuries ago. Hydra do not like to be touched and close to protect themselves.
special cells
They retract their tentacles into their body stalk.
Hydra or Hydra
Hydra is an animal. Animals never have chloroplasts
In hydra -_-
no,hydra have no organ
A hydra does not have cephalization.
hydra
No a hydra is not a fish. A fish is a vertebrate. A hydra is much more primitive.
No a hydra is not a fish. A fish is a vertebrate. A hydra is much more primitive.
Lernaean Hydra.
Hydra is a eukaryote
how do hydra move