The body plans cnidarians generally have radial symmetry (Fig. 3.25 A). Because the tentacles of corals, jellyfish, and sea anemones have this radial structure, they can sting and capture food coming from any direction.
Another important characteristic of some cnidarians is that they have bodies with nearly radial symmetry. Consider the illustration of the sea anemone below. |
Cnidarians exhibit radial symmetry, which means that they are split into identical pieces along a central axis. The cnidarian life cycle has two distinct ... |
18 окт. 2024 г. · Among theories proposed on the evolution of the phylum Cnidaria, most treat the radial symmetry and tissue level of organization as evidence ... |
3 сент. 2016 г. · The bilateral symmetry of Cnidaria is thought to be inherited from the common ancestors of both cnidarians and triploblastic bilaterians. The ... |
They usually have umbrella-shaped bodies and tetramerous (four-part) symmetry. The mouth is usually on the concave side, and the tentacles originate on the rim ... |
Cnidarians are radially symmetrical, soft-bodied animals found in aquatic habitats. Their common names are sea anemones, jellyfish, corals and hydras. Some ... |
Cnidarians mostly have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles ... Hydroid (zoology) · Myxozoa · Annella mollis · Hexacorallia |
22 окт. 2024 г. · The bilateral symmetry of Cnidaria is thought to be inherited from the common ancestors of both cnidarians and triploblastic bilaterians. The ... |
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