write the characteristics of cnidaria
Answers
Cnidaria
Explanation:
Cnidarians share several basic characteristics. All Cnidaria are aquatic, mostly marine, organisms. They all have tentacles with stinging cells called nematocysts that they use to capture food. Cnidarians only have two body layers, the ectoderm and endoderm, separated by a jelly-like layer called the mesoglea. Most Cnidarians have radial symmetry. Most Cnidarians have complicated reproductive cycles that include an asexual stage and a sexual stage. Some Cnidarians are completely mobile while others are completely sessile, but most have both mobile medusa and sessile polyp stages in their life cycles.
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