Converse of object

• fossilize: A Pret a Manger soy sauce bottle in the shape of a fish sits comfortably next to a fossilized sea urchin.

• include: Other fossils include the sea urchins ( echinoids ), which occur in a number of varieties.

• form: The fossil is part of a test ( internal shell ) of a sea urchin formed about 85 million years ago.

• templating: Abstract A range of macroporous inorganic solids, with unique, sponge-like structures were synthesized by templating sea urchin skeletal plates.

• sponge: Barrel and tube sponges, sea urchins, spiny lobsters, coral shrimp and crabs are also widely present.

• find: The fossil of a sea urchin found in Middlesex is said to be 70 million years ord.

Adjective modifier

• spiny: In other parts the rocks were totally bare from having been grazed by massive numbers of spiny sea urchins.

• edible: Underwater you'll find plenty of anemones, Ross corals and edible sea urchins.

• black: Marine life is made up of crustaceans, echinoderms, spiny black sea urchins and a resident school of spotted sweetlips.

Modifies a noun

• spine: Chris has been disastrously affected by altitude, Jeremy by the stubborn sea urchin spines.

• plate: Although composed of a single crystal of calcite, a sea urchin plate exhibits a bicontinuous morphology with pores of diameter 10-15 micron.