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Sea Urchins

How often do sea urchins reproduce?

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sea urchins can either reproduce sexually or asexually sea urchins can either reproduce sexually or asexually


by mating with another GIANT red sea urchin!


Sea urchins generally have separate sexes and spawn seasonally every year. Eggs and sperm are usually released to the water column where fertilisation occurs.


what are a sea urchins movement


No. Sea urchins live in the sea.


it lives off its atoms and when sea urchins go to eat them and they drop a little piece then it gets covered by dirt and the dirt reproduce it


Five ocean animals that can produce sexually are Cnidarians, sea cucumbers, jellyfish, sea anemone and sea urchins.


sea otters eat sea urchins


sea urchins come from the ocean


Sea urchins are echinoderms, not mammals.


Frogs are much more active and efficient parents than sea urchins are. Frogs are able to protect and care for eggs until they hatch, whereas sea urchins cannot. Therefore, sea urchins need to produce more eggs to account for higher mortality.


Sea urchins do not communicate with each other



How deep do sea urchins live


there are excatly 3million purple sea urchins


Sea Urchins are multicellular animals, phylum echinodermata.


No, or they wouldn't be called *sea* urchins.


Humans, sea otters, and many more sea creatures eat sea urchins


Sea urchins are ocean creatures, and do not survive in fresh water. Sea urchins can only thrive in a seawater environment.


no one knows how much sea urchins there r


Sea urchins live in the sea, rock pools, kelp forests, and coral reefs


No. Sea urchins are primary consumers and only eat sea weed, algae and kelp.


No - sea urchins are part of the echinoderm phylum, with sand dollars, starfish and sea cucumbers.


it depends on which sea urchin........some sea urchins in Australia shoot poison


Sea urchins eat seaweed,algae and bits of plants and animals.



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