Description

Paramecium Ingestion (200x) , Circulation (100x) , Hydra (14x) , Planaria(3x) Earthworm (5x) Frog Heart (4x) & (1x) , Rat Heart (4x) , Artery and Vein (35x) , Frog Blood (400x)/Human Blood (900x) , Crab Heart (1x)