All insects have some very distinct structures in common. First is bilateral symmetry and three pairs of legs attached to a body with three major parts, the head, thorax and abdomen. All insects have exoskeletons and an open respiratory system as well.
All cnidarians live in water, have tentacles with specialized stinging cells called nematocysts, and have an internal sac for digestion which is called the gastrovascular cavity.
all cnidarians live in water
They all have a single opening in their body that acts as an anus and a mouth
They are eukaryotic, meaning that all of them have nuclei with membrane-bound organelles.
A radially symmetrical body with a saclike internal cavity
nothing
Body parts
Cnidarians have a radial symmetry.
Cnidarians and Sponges are invertebrates
No. Cnidarians don't even have a circulatory system.
The nervous system. Cnidarians have a neural net, but porifera do not.
cnidarians
Cnidarians live in water.
what is the arm like structures surrounding the mouth of cnidarians
None
The stinging cells of cnidarians, called cnidocytes, are located on specialized structures called nematocysts. These nematocysts are found on the tentacles of cnidarians and are used for defense and capturing prey.
Ctenophores are gelatinous creatures with rows of cilia for movement and lack stinging cells, while cnidarians have stinging cells called cnidocytes. Ctenophores also have a simpler body structure compared to the more complex body plans of cnidarians, which include jellyfish, corals, and sea anemones.
small cnidarians and big cnidarians
cnidarians have no nervous system
Yes, cnidarians are invertebrates.
The cnidarians are in the Kindom family
Cnidarians have a radial symmetry.
Cnidarians have no gut in their body .The structure which performs function similar to gut is called gastrovascular cavity .
Nope - Cnidarians are marine creatures !