Sea Urchins eat the Hold-fasts of kelp with five self sharpening teeth.
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While sea urchins are slow and non-aggressive, they do have spines for a reason. Some sea urchins possess venomous spines, sharp enough to pierce through a diving suit. This venom can cause muscle spasms, faintness, difficulty breathing and death.
Echinoderms.
Sea urchins reproduce by releasing eggs and sperm into the water, where external fertilization takes place. Once fertilized, the eggs develop into larvae that eventually settle and grow into adult sea urchins. Some species of sea urchins can also reproduce by asexual means, such as splitting or budding.
Sea urchins belong to the kingdom Animalia, which is one of the five kingdoms of living organisms. Within the kingdom Animalia, sea urchins are classified under the phylum Echinodermata. Echinoderms are characterized by their spiny skin and radial symmetry, which sea urchins exhibit prominently.
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 have spines that react to predators
Sea urchins get their food at the bottom of the sea floor to eat dead fish.
No. Sea urchins live in the sea.
No, atually they live in massive groups, searching for kelp and other sea grasses to munch on. A large mass of urchins can clear massive kelp forests in a short amount of time. Most urchin groups live in shallows, but some species prefer deeper waters.
They eat dead fish. They also eat mussels, crabs, clams, and sea urchins.
In the 1800s, too many sea otters were hunted for their fur. Without sea otters, fewer sea urchins were eaten. Soon, too many sea urchins were being born. Smaller fish could not survive, because sea urchins ate their supplies of kelp. These fish were food for sea stars and crabs. The sea stars and crabs began to die out.
More sea urchins.
The classification of a Sea Urchin is Echinoidea
there are excatly 3million purple sea urchins
sea urchins eat kelp.
While sea urchins are slow and non-aggressive, they do have spines for a reason. Some sea urchins possess venomous spines, sharp enough to pierce through a diving suit. This venom can cause muscle spasms, faintness, difficulty breathing and death.
to survive in the ocean, sea urchins always scurry away on their tube-like feet and hide in cracks and crevices. ( but of course they have to make sure their is no moray eels in there first!)