One of the physical characteristics of the sea lilies is that it has a mouth that faces up. The sea lilies also have five arms. The crown is its main body part.
The scientific name of sea lilies are crinoid
Sea lilies eat tiny water organisms called plankton.
Sea lilies use the tube feet on their arms to capture floating plankton in the water.
Sea lilies eat tiny water organisms called plankton.
The sea, they're sea lilies.
sea lilies
The opposite of a physical characteristic may be a chemical characteristic.
Starfish, sea urchins, brittle stars, sea lilies
no
10 eggs
A physical characteristic of an organism are its phenotype. The phenotype comes from the organisms genes and the environment it lives in.
If you mean echinoderms, the answer is starfish, brittle stars, sand dollars, sea urchins, sea cucumbers, and sea lilies.