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All stages through the bipinnaria on one slide, w.m.
C.s to show external opening of the nephridium.
The Cells of Plants & Animals Class Set is a Best Seller classroom unit. This set allows the tea...
Stellate colonial plates, whole mount. Botany Slide – Pediastrum, Prepared Slide, (each)
Earthworm, Thru Sex Organ, l.s. through sex organs, selected to show seminal receptacles and vesicle...