"water bath"

Create a suitable home for fish, brine shrimp and other marine invertebrates. A 450 g bag will make three gallons of sea water (1.020-1.025 specific gravity). (Please note: This item is recommended for use with saltwater aquaria only.)

Crayfish are a mixture of Orconectes immunis and Orconectes virilis.

Test cylindrical, covered with sand granules. Soil-water medium.

Characterized by pseudopods; with or without a shell (test).

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Our choice of three from the following: Actinosphaerium, Amoeba, Arcella, Centropyxis, and Difflugia.

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Contents: Chlamydomonas, Eudorina, Euglena, Gonium, Pandorina, and Volvox.

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Our choice of five from the following: Blepharisma, Colpidium, Euplotes, Paramecium aurelia, P. bursaria, P. caudatum, P. multimicronucleatum, Spirostomum, and Stentor.

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of micro life, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, Ward's has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample.

This is the most widely studied Turbellarian, a free-living flatworm commonly used in science fair projects.

Daphnia are a widely studied small crustacean used for a number of physiology studies including the effects of drugs on heartbeat and temperature on metabolism.

Spirogyra is a genus of filamentous green algae with chloroplasts arranged in a helical (spiral) pattern.

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

Specially Prepared 'Real-Life' Combinations

Paramecium bursaria is a ciliate that contains mutualistic algae called Zoochlorella. The algae lives in the cytoplasma of the Paramecium and provides it with food. Paramecium bursaria grows in Dilute Alfalfa Medium (Hay Medium) or Soil Water Medium. Requires light for growth.

One jar containing a mixture of 6 different genera of algae. Each algae is cultured individually in Ward's laboratories, and mixed together immediately prior to shipment to ensure an adequate supply of each organism.

These unique salamanders keep their gills and stay fully aquatic even into adulthood, making them ideal subjects for embryological and developmental studies.

Hemolysis, the rupture of red blood cells, is induced by certain species of streptococcal bacteria that produce extracellular hemolysin.  Observe this phenomenon with this set of 3 non-pathogenic species