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Sea Urchins
There are over 900 sea urchin species and they can be found in almost all parts of any ocean. They are often characterized by protruding spines from their test.
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What symbiotic relationship does a sea urchin have?
Do sea urchins have predators?
What does a stoplight parrotfish eat?
What kingdom is sea urchins in?
What is the sea urchins phylum?
What is a group of sea urchins called?
What two ways spines are useful adaptation for sea urchins?
Do sea urchins live in fresh water or salt water?
What are some different types of sea urchins?
What happen if you leave vana sea urchin in foot or hand?
What does purple urchins eat?
Do sea urchins produce pearls?
How do you store sea urchin?
What are the red spots seen in the later staged embryos in sea urchins?
Do Sea Urchins have arms?
Do purple sea urchins have an exoskeleton?
What ocean animals eat sea urchins?
Which is the life cycle of a sea urchin?
Why are sea urchins important?
Are sea urchins benthos?