Give a one-word scientific term for the following `:`
(a) Construction of an animal such as earthworm by repeated segments
(b) Blood-filled cavity in arthropods
(c ) Excretory organs of an annelid
(d ) Free-floating form of cnideria.
(e ) Stinging cells of jellyfishes
(f) Individual animals bearingorgans of both sexes
(g ) A collection of nerve cells bodies
(h ) Mollusks with two valved shells