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Circulation within Cnideria isn't 'realy' circulation. They do not have any organs or special tissues that work for circulation. Organisms in this phyla would get their nutrients through diffusion. Since these organisims are never far away from water they just get their nutrients through the water that they are in.
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What are three function of a cnidarians' gastrovascular cavity?
1. digestion 2. circulation 3. physical support and movement
In what way is a portal circulation a strange circulation?
The portal circulation is a "strange" circulation because it consists of veins draining into capillaries, which drain into veins again.
How do cnidarians eat?
Mainly through suspension feeding. Cnidarians use stinging tentacles (nomocytes) to capture their prey. Once the tentacles grab the food it is absorbed in the gastrovascular cavity (stomach) and taken in asnutrients.
What are two types of cnidarians that are formed by colonies?
small cnidarians and big cnidarians
Do cnidarians have nerves?
cnidarians have no nervous system
Is a cnidarians invertebrates?
Yes, cnidarians are invertebrates.
What is the family for cnidarians?
The cnidarians are in the Kindom family
Symmetry of cnidarians?
Cnidarians have a radial symmetry.
Are earthworms cnidarians?
Nope - Cnidarians are marine creatures !
What is a Cnidarians such as a box jellyfish?
cnidaria(similar to cnidarians)
How do cnidarians reproduce.?
Cnidarians reproduce asexually and sexually
How protists are helpful amongst cnidarians?
They provide a habitat for Cnidarians
