Converse of object

• sponge: Most modern reefs are built by corals and algae, but sponges, bryozoans and bivalves have all formed reefs in the geological past.

Adjective modifier

• marine: Earthworms, leeches, lugworms and marine worms Bryozoans Bryozoans look like plants but actually consist of thousands of tiny animals.

Modifies a noun

• colony: They were found to be the first free-swimming bryozoan colonies ever recorded.

• turf: In tide-swept areas communities of hydroid and bryozoan turfs or beds of brittlestars may be dominant.