Assertion: echinoderm's structure | /r/SimilarTo | small wart
Facets:
value: often
type: TEMPORAL
Source sentences:
text: holothuroids - sea cucumbers macroalgae - a biological term used to describe larger forms of algae, such as seaweeds; topshell snails and other gastropods commonly feed on this madreporite - small red or yellow button-like structure that often looks like a small wart on a sea star\'s central disk; used to filter water into the sea star\'s water-vascular system mantle - muscular swimming organ that relaxes and contracts to use jet propulsion to move the animal forward paralarva - first free-living, cephalopod life-history stage that is found in the near-surface plankton and that differs in both morphology and vertical distribution from older juveniles pen - smaller internal shell found in some squid podio - tube feet; used for suction, eating and movement pognophore - wormlike marine invertebrates that grow in upright chitin tubes, usually at depths greater than 100 meters (330 feet), have tentacles attached to the head region, and lack a digestive system radula - file-like appendage that extends from the squid’s beak that rams food down into the esophagus regenerate - to replace (a lost or damaged organ or part) by formation of new tissue sessile - organisms which are not able to move about; they are usually permanently attached to a solid substrate of some kind, such as a rock setae - a stiff hair, bristle, or bristle-like process or part on an organism skin graft - a surgical graft of healthy skin from one part of the body to another or from one individual to another in order to replace damaged or lost skin spermatophores - a packet of sperm that is formed by the male and passed to the female during mating stelleroid - stemless echinoderms that have a central disc from which five or more arms radiate univalve - one-shelled animals ventral - relating to or situated on or close to the anterior aspect of the human body or the lower surface of the body of an animal; abdominal water vascular system - a system of water filled canals and appendages that function primarily in locomotion, reproducing and feeding