which echiderm is sessile?

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which echiderm is sessile?

2007-11-25 15:04:45 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology

4 answers

Crinoids
Example: sea lily

2007-11-28 22:17:44 · answer #1 · answered by Ishan26 7 · 0⤊ 0⤋

In botany, sessile means "without a stalk" - the flowers or leaves grow directly from the stem.
But in limnology, sessile vegetation are any organisms anchored to the environment.

Can't help with "echiderm", couldn't find that word in the dictionary or encyclopedia.

2007-11-25 15:11:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋

Sea lilies.

2007-11-25 15:25:25 · answer #3 · answered by naz 5 · 0⤊ 0⤋

The closest would be the feather star, a type of Crinoidea. They usually anchor themselves but can move if they want.

http://www.starfish.ch/reef/echinoderms.html#feather

2007-11-25 15:20:15 · answer #4 · answered by Kari 3 · 1⤊ 0⤋