a hydra as a polyp is not sessile but when it grows to be a hydra it is sessile
The definition of sessile is something that is attached at the base, like the leaf that is attached by stem to a branch... Do you mean noturnal?
they are sessile
Sessile means attached. So a sessile organism is attached to a substrate.
Tapinoma sessile was created in 1917.
hibiscus is pedicle flower
Vagrant moves, Sessile doesn't
Most sessile animals are of the phylum Mollusca.
Sessile organisms are immobile. So. I can't think of any animals. But plants are sessile. Edit: Corals (related to anenomes) and sponges are good examples of sessile animals, the latter has a motile larval stage before it settles on a substrate and becomes sessile.
A barnacle could be described as being sessile.
sessile means without stalk
The opposite of sessile is motile. Motile organisms are able to move or change position on their own, as opposed to sessile organisms which are fixed in one place.