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Urchins - page 2
How seaurchins eat?
Sea urchins eat using a structure called Aristotle's lantern. It is made up of five hard plates that come together like a beak. They use their beak-li...
How do sea urchins walk?
Sea urchins move by walking, using their many flexible tube feet in a way similar to that of starfish; regular sea urchins do not have any favourite w...
What are some predators of the urchin?
Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes. In the northwest, sea otters are common predators of the purple sea ...
Does a sea urchin eat and poop out of its anus?
Yes, it's true! Sea urchins, like many animals, will expel poop from their digestive systems following the digestion of food. Do urchins have anus?Do ...
Are sea urchins animals?
sea urchin, any of about 950 living species of spiny marine invertebrate animals (class Echinoidea, phylum Echinodermata) with a globular body and a r...
Are sea urchins endothermic?
Are echinoderms ectothermic or endothermic?What is the relationship between sea urchins and temperature?Do sea urchins need temperature?Are sea urchi...
How do sea urchins defend them selves?
They use their beaks to break open the shells and eat the gonads inside. To protect themselves intertidal sea urchins will pile rocks and shells on to...
What do seaurchin eat?
Sea urchins will eat just about anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and som...
Do Sea urchins give birth?
Sea urchins reproduce by sending clouds of eggs and sperm into the water. Millions of larvae are formed, but only a handful make it back to the shorel...