Enlarged approximately 30 times. The anatomy of the hydra is shown in longitudinal section: entoderm, mesoglea, ectoderm, male and female egg cell, buds and mouth opening. Supplied on stand.
Enlarged approximately 30 times. The anatomy of the hydra is shown in longitudinal section: entoderm, mesoglea, ectoderm, male and female egg cell, buds and mouth opening. Supplied on stand.