Purple sea urchins live in close association with kelp forests. Kelp is their primary food.
there are excatly 3million purple sea urchins
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
No. Sea urchins live in the sea.
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
They do, which keeps the sea urchin strong and not brittle.
this this is a girls from il. who wants to know how long sea urchin's live yes, sea urchins live in hawia =)
Sea urchins live in the sea, rock pools, kelp forests, and coral reefs
its a live sea animal its a live sea animal its a live sea animal its a live sea animal its a live sea animal
They get no parental care at all.
"When kids say 'average' they are really getting themselves into trouble! Most sea urchins are mass spawners, producing several million eggs. If even a tiny percentage are fertilized, you will have thousands of live offspring. And only a small percentage of these survive in their planktonic form without starving or being eaten until they find a place to settle as tiny adult urchins. Of these, only a handful will survive to spawn (and perhaps none). If I were being mathematically and linguistically correct I would have to answer your question, "The *average* lifespan of an urchin is 10-12 days!"On the west coast the intertidal sea urchins that kids come in contact with, like purple sea urchins (Strongylocentrotus purpuratus), are thought to be able live as long as thirty years. " - (author:Henrik Kibak)shared by: Glen Corral
It depends on the type of urchin, anywhere from 4 to 150 years.