"Ward's Science"

An excellent specimen used to demonstrate the insect body structure.

Serial cross sections.

Necturus liver. The enzyme RNAase specifically digests RNA, confirming the existence of RNA in the nucleolus of the cytoplasm. Compare to RNA (sect) mgp.

Often mistaken for beetles, these wingless crustaceans live their whole lives on land, feeding on decaying organic matter.

All specimens listed below are included in individual jars with each set. Guide included with each set.

All specimens listed below are included in individual jars with each set. Guide included with each set.