"Freeze-Dried Specimens"

Two o strains of Escherichia coli; one exhibiting Ampicillin resistance, and one sensitive, but competent and ready to receive the plasmid that confers resistance.

Each vial is a dropper bottle with enough freeze-dried serum to make 5 mL of reconstituted serum

Eight High-Quality Fossils for Introductory Classes

This set features a handy, economical selection of density cubes.

This Premium introductory collection features 12 palm-sized specimens perfectly sized for identifying details.

The Specific Heat Specimens Set can be used to determine the specific heats of a variety of common metals.

Well-preserved individual teeth from what may be the largest known carnivorous dinosaur found to date in the fossil record. Exceptional quality and detail. Average size: 1 ^₁/₂" L x ¹/₂" W. Morocco.

There’s no more convenient way of learning essential properties of minerals than with this informative, decorative set of cards exclusively from WARD’S.

Exceptional perch specimens plus trays and pins, magnifiers, specimen storage bags, and a dissection manual are included in one package.

Exceptional earthworm specimens plus dissection trays and pins, magnifiers, specimen storage bags, and a dissection manual are all included in one package.