Hydra model 1 set

This 4 part model shows longitudinal and cross sectional view of the hydra,  highlingting  significant  anatomical  features,  including the ectoderm, mesoglea, coelenterons, male and female egg cells, buds and mouth opening. The cross sectional block model, about 250X life size,  shows  various  cellular  structures,  including  nematoblasts, epithelial cells, sensory cells.