Phylum Cnidaria
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- Phylum Cnidaria includes jellyfish, sea anemones, box jellies, corals, and hydra
- Phylum Cnidaria is named after stinging capsules called cnidae
- Mostly marine
- Diploblastic - two germ layers, the ectoderm and endoderm
- Distinct tissues, but no organs
- All species are carnivores
- Have two general forms - a sessile polyp and a free-swimming medusa