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Yes, they use a gas exchange (oxygen in and carbon dioxide out) taking place by diffusion across cell membranes of the tube feet.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agowell, they don't eat bubbles.
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What do sea urchins use oxygen for?
Any animal need oxygen for respiration.
Do sea urchins live in Connecticut?
No. Sea urchins live in the sea.
What does the process of fertilization in sea urchins produce?
More sea urchins.
Ho do sea urchins reproduce?
sea urchins can either reproduce sexually or asexually sea urchins can either reproduce sexually or asexually
What category do sea urchins fit into?
The classification of a Sea Urchin is Echinoidea
How are sea urchins and kelp forests connected?
sea urchins eat kelp.
How many purple sea urchins are there?
there are excatly 3million purple sea urchins
Where can sea urchins be found?
in the sea
Are sea urchins predators?
No. Sea urchins are primary consumers and only eat sea weed, algae and kelp.
Is sea urchins herbivorous?
Yes, sea urchins are herbivores because they mainly feed on algae.
What colors are sea urchins?
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
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.
