sea urchins eat kelp.
No. Sea urchins are primary consumers and only eat sea weed, algae and kelp.
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Sea Urchins
Sea Otters find sea urchins on the ocean floor and break it open with a rock. It will then eat everything except the spines (the insides).
Green Sea Urchins eat plankton, algae, small fish, mussels, sponges, and brittle stars.
sea urchins
sea urchins
Yes
Sea otters are secondary consumers. This because sea urchins are primary and sea otters eat sea urchins.
Sea urchins mainly eat algae and coral. However, they also are known to sometimes feed on decomposing matter such as dead fish.
There are several animals that eat sea urchins. Sea otters, sunflower stars, snails, crabs and some species of fish predate upon sea urchins.