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Which invertebrate animals have bodies shaped like a sack with openings at the top - sponges or cnidarians?
Cnidarians.
Do cnidarians have soft bodies?
Mostly, yes.
What are some characteristics of cnidarians?
soft bodies and stinging cells
The bodies of all cnidarians are best described as?
sac-like
Is coral an example of a sponge?
No..it's a cnidarians (coelenterates) CNIDARIANS-aquatic animals with soft bodies shaped like a vase, a bell or an umbrella
Which of these marine animals have bodies full of holes or pores?
the sponges
Bodies of sponges contain sharp structures?
Yes, they are called spicules, not pores or spiracles as many people think.
Do cnidarians have an exoskeleton?
Yes; many cnidarians have an exoskeleton.
How many types of cnidarians are there in the world?
Cnidarians do not have legs. Many have stinging tentacles. The number of these varies by species.
What phylum has pores in it?
The phylum Porifera, commonly known as sponges, has pores in their bodies called ostia. These pores allow water to flow through the sponge, helping with filter feeding and gas exchange.
How do cnidarians and flatworms get food?
They are filter feeders that draw water into their pores, filter out tiny sea invertebrates that are absorbed and digested, and expel the remaining water in a continuous basis.
Do cnidarians have sight?
Cnidarians do no possess eyes for sight, though many of them are able to sense light vs dark.
