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Which invertebrate animals have bodies shaped like a sack with openings at the top - sponges or cnidarians?
Wiki User
∙ 14y ago
Cnidarians.
Wiki User
∙ 14y ago
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What creatures have a backbone?
All animals in the invertebrate kingdom. This includes all insects.
Are spnges and cnidarians verebrate or invertebrate?
I assume you mean sponges, and they are obviously invertabrates (they lack a back bone).
How do sponges and cnidarians obtain food and what do they eat?
Cnidarians have strings to get their food also to get protection they are also divided in three groups what they also have that sponges dont is string cells and they have a simple nervous system . On the other hand,Sponges have No symmetry they never move and have no organs . Thanks for using my answers to help you with your science work .
Is an sponge a vertebrate or an invertebrate?
yes sponges are invertebrate animals without backbone
What is this porifera about?
Porifera is about the invertebrate animals i.e sponges
Are coral jellyfish or sponges cnidarians?
Corals and Jellyfish are cnidarians, sponges are not.
What are all of the invertibrate groups?
An invertebrate is an organism that lacks a backbone. The 6 groups of invertebrates are sponges, cnidarians, worms, mollusks, echinoderms and arthropods.
What are the main characteristics of sponges cnidarians and worms?
Sponges are invertebrate animals that usually have no body symmetry and never have tissues or organs. Cnidarians use stinging cells to capture food and defend themselves. Flatworms are flat and as soft as jelly. Unlike cnidarians or flatworms, roundworms have a digestive system that is like a tube, open at both ends. Earthworms and other segmented worms have bodies made up of many linked sections called segments.
What makes hydras different from other cnidarians?
cnidarians move from place to place. sponges dont.
Are cnidarians arthropods?
Cnidarians and Sponges are invertebrates
Do sponges or cnidarians have a gastovascular cavity?
No, they are from the Phylum Porifera.
Are sponges cnidarians?
No. Sponges have their own phylum called Porifera.
