Cnidarians typically have a sac-like body with a central digestive cavity. They feature tentacles around their mouth, often arranged in a radial pattern. The body plan can be either a polyp (like sea anemones) or a medusa (like jellyfish), with variations in size, color, and tentacle arrangements among different species.
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Cnidarians typically have a sac-like body with a central digestive cavity. They feature tentacles around their mouth, often arranged in a radial pattern. The body plan can be either a polyp (like sea anemones) or a medusa (like jellyfish), with variations in size, color, and tentacle arrangements among different species.