AP BIOLOGY

Detailed explanation-1: -The phylum Cnidaria (pronounced “nih DARE ee uh”) includes soft-bodied stinging animals such as corals, sea anemones, and jellyfish (Fig. 3.23 A). The phylum’s name is derived from the Greek root word cnid-meaning nettle, a stinging plant. Cnidarians are found in many aquatic environments.

Detailed explanation-2: -Cnidarians are soft-bodied animals that include corals, jellyfish, and sea anemones. These soft-bodied animals have saclike digestive cavities and tentacles containing rows or stinging cells used for defense and capture of food.

Detailed explanation-3: -Within the phylum Cnidaria, the class Anthozoa includes corals, anemones, sea pens and seafans. Anthozoa consists of 10 orders and thousands of species. Adults are attached to the seabed, but their larvae are free-floating and can drift to new settlements.

Detailed explanation-4: -cnidarian, also called coelenterate, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9, 000 living species. Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.

Detailed explanation-5: -Examples of cnidarians include corals, Hydra, jellyfish, sea anemones, sea pens, sea whips, and sea fans.