sea cucumber... ;)
The outer part
It helps it move from place to place! :)
they use sucker like part to catch prey
No, it is part if the intestines.
The lower part of the large intestines.The lower part of the large intestines.
The breech is the hind part of the metal part where you insert or eject cartridges.
A starfish is an echinoderm.
Intestines
No, sea anemone is Cnidaria
No. A spider is an arachnid. A starfish is an example of an echinoderm.
Echinoderm is an invertebrate and therfore it has no backbone