Taxonomy

Latin word roots, prefixes and suffixes

Tree dichotomous key

AIMS activity dichotomous key

Zoology
Univ. of Michigan - Animal Diversity

BugScope

Australia Museum - Icthyology

Earthworm review

Aquatic Macroinverebrate identification key

Virtual Frog dissection

Botany

eNature Plant guide

Diagrams: flowers / roots / leaf margins

Flower radiographs

What tree is that?

Lichen Land

Dr. Fungus

Tom Volks' Fungus page

Virtual Museum - Fungusful World

Microbiology

Hidden Killers: Deadly viruses

Big Picture book of Viruses

Virus Life cycle gizmo

Spread of Disease Gizmo

MicrobesInfo.com

Images of microrganisms

CDC page on West Nile

Pond life ID kit

Vitrual Pond Dip

Collection of Freshwater microorganisms