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Bioscience International is the world leader in environmental sampling products. It is most famous for the SAS 100 and SAS 180 air samplers, which are used by major governmental organizations (including NASA and the National Institutes of Health), hospitals, and pharmaceutical companies across the world.
Developed for students in grades 5-12, these three protozoan videos show locomotion, cell parts, reproduction and the food chain in action. A comprehensive teacher handbook accompanies all orders.