"Science Take-Out"

Usually found in freshwater and mosses, this organism has a hard umbrella shaped shell or "test", out of which finger-like pseudopodia project.

An excellent aquarium oxygenator, great for teaching respiration, photosynthesis, and plasmolysis.

Penicillium notatum is a deuteromycete that produces penicillin. It is available in normal and high-yield strains.

Red-pigmented halophile from evaporating salt ponds; requires 25% salt medium, lyses easily in plain water, releasing DNA.