What kind of structure do cnidarians have?

Answer 1

CnidariaCnidaria is a phylum containing some 11,000 species of relatively simple animals found exclusively in aquatic, mostly marine, environments. Cnidarians get their name from cnidocytes, which are specialized cells that carry stinging organelles. The corals, which are important reef-builders, belong here, as do the familiar sea anemones, jellyfish, sea pens, sea pansies and sea wasps. The names Coelenterata and Coelentera were formerly applied to the group, but as those names included the Ctenophores (comb jellies), they have been abandoned. Cnidarians are highly evident in the fossil records, having first appeared in the Precambrian era.

Answer 2

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.

Answer 3

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

Answer 4

Cnidarians have a simple body structure with a central digestive sac called a gastrovascular cavity. They also have tentacles with stinging cells called cnidocytes, which are used for capturing prey and defense. Some cnidarians have a polyp form (like sea anemones) while others have a medusa form (like jellyfish).

Answer 5

They all have a single opening in their body that acts as an anus and a mouth

Answer 6

They are eukaryotic, meaning that all of them have nuclei with membrane-bound organelles.

Answer 7

A radially symmetrical body with a saclike internal cavity

Answer 8

nothing

Answer 9

Body parts