None of the above.
Sea pens are marine cnidarians that have a soft cylindrical body with a feathery, brightly colored polyp at one end. They are named for their resemblance to old-fashioned quill pens. Sea pens are typically found in deep-sea environments and are filter feeders, using their polyps to capture plankton from the water.
They mostly live in salt water, but a few species live in freshwater ponds and lakes.
Corals are organisms that live in colonies of polyps and secrete an exoskeleton of calcium carbonate. These structures form the framework of coral reefs, providing habitat for a diverse array of marine life.
Coral are marine animals that typically fall in the Anthozoa class. All corals have tubular bodies called polyps with a ring of stinging tentacles around the mouth. When the animal dies, the polyps harden and may become part of a coral reef.
It's a mutualistic symbiosis, and occours in corals, jellyfishes and other polyps.* The symbionts, called zoochlorellae if they are green algae or zooxanthellae if they are protozoans, with photosynthesis produce: # Sugars, wich can feed the host up to 90% of its energy request. # Oxygen. * The cnidarian (coral, jellyfish or hydropolyp) gives to zoochlorellae (or to zooxanthellae) his products of waste: # CO2 (which decreasing helps hermatypic corals forming their skeletons) # Minerals. # Nitrogen. In order to perform photosynthesis, zoochlorellae and zooxanthellae need light, so they can stay only in shallow waters.
Cnidarians come in two forms: a medusa has tentacles that hang down and polyps usually live attached to a surface.
Where do polyps live
Cnidarians live in water.
the cnidarians live at the bottom of the sea ------- and the top of the sea, and everywhere in between...
yes cnidarians lay eggs
Hmmm, Mrs Perry's class I see. It occurs in the gastrovascular cavity.
Sea pens are marine cnidarians that have a soft cylindrical body with a feathery, brightly colored polyp at one end. They are named for their resemblance to old-fashioned quill pens. Sea pens are typically found in deep-sea environments and are filter feeders, using their polyps to capture plankton from the water.
because none of them can breath air
Sponges and cnidarians commonly reproduce asexually by budding
because none of them can breath air
Yes, polyps typically live close to the surface of the water on the ocean floor or on rocks in coral reefs. They use their tentacles to capture food particles from passing water.
They mostly live in salt water, but a few species live in freshwater ponds and lakes.