Hydra T.S
Phylum: Cnidaria
Class: Hydrozoa
• Diploblastic acoelomate and tissue grade.
• The usual layers such as ectoderm, mesogloea and endoderm are seen.
• In ectoderm and endoderm – various kinds of cells such as neurosensory cells, gland cells, and nematocyst are seen.
• An enteron is present in centre.