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A sea urchin's exoskeleton, known as a test, is quite hard and rigid due to its composition of calcium carbonate. This structure provides protection against predators and environmental factors. The test is also covered with spines, which add an additional layer of defense and help in locomotion. While it is sturdy, the test can be broken under sufficient force, but it remains a strong protective barrier for the sea urchin.
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What is the unique features of a sea urchin?
Sea Urchins have spikes are soft and chalk like , or they can be , hard and covered by a shell-like structure . There are more than 200 types of Sea Urchins , there are many different sizes and shapes of Sea Urchins species.
Do sea urchins live in Connecticut?
No. Sea urchins live in the sea.
Is sea urchin a fish?
No, sea urchins are not fish. They are marine animals belonging to the phylum Echinodermata, whereas fish belong to the animal kingdom Chordata. Sea urchins have a hard outer shell made of calcium carbonate and are more closely related to starfish and sand dollars than to fish.
What does the process of fertilization in sea urchins produce?
More sea urchins.
What category do sea urchins fit into?
The classification of a Sea Urchin is Echinoidea
How many purple sea urchins are there?
there are excatly 3million purple sea urchins
How are sea urchins and kelp forests connected?
sea urchins eat kelp.
What phylum do sea urchins belong?
Echinoderms.
Are sea urchins predators?
No. Sea urchins are primary consumers and only eat sea weed, algae and kelp.
Where can sea urchins be found?
in the sea
Is sea urchins herbivorous?
Yes, sea urchins are herbivores because they mainly feed on algae.
What does sea urchin eat?
small fish,sea weed , planton,brittle stars.
