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they have spines that react to predators
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∙ 11y ago
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What can help the sea urchins To survive?
Sea urchins get their food at the bottom of the sea floor to eat dead fish.
Do sea urchins live in Connecticut?
No. Sea urchins live in the sea.
Do sea urchins live in warm water?
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.
What do lobsters do to survive?
They eat dead fish. They also eat mussels, crabs, clams, and sea urchins.
What are some sea urchin adaptations?
Sea urchins have several adaptations to help them survive. To protect themselves from predators, sea urchins will react immediately if something sharp touches their shell and they will point all of their spines towards the area being poked. They are also light-sensitive. This is why they are nocturnal. This light sensitivity also allows sea urchins to move their spines in reaction to shadows. In order to protect themselves from being swept away from the powerful ocean currents and waves, sea urchins lodge themselves into holes or crevasses. Finally sea urchins, somewhat like starfish, have a certain regenerative ability. If a spine is damaged or lost, a sea urchin can rebuild it. However if there is too much extensive damage to the test, the sea urchin won't be able to heal it.
What happened to the kelp forests?
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.
What does the process of fertilization in sea urchins produce?
More sea urchins.
What is Sea Urchins?
please people i need an answer to my question!!!:( Due,.......... TODAY!!!!!!!!!!!!!!!!!!
Ho do sea urchins reproduce?
sea urchins can either reproduce sexually or asexually sea urchins can either reproduce sexually or asexually
What are the Adaptations of a ocean sunfish?
because of small mouth they adapt by having a diet of maily jellyfish Because of rough and thick skin it deters predaters because of the taste clumsy swimmers but adapt by letting the current carry them
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
