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The classic key to identifying trees by their leaves and needles.

Illustrated dissection guide.

These economical and concise guides contain the right amount of information for reference during dissection.

Actively involve your students in the learning process with these sophisticated biology coloring books.

James L. Castner

Book & Downloadable Content Combo Reference

Striking Images Capture Meiotic Recombination

This fun, thought-provoking learning experience uses 9 museum-quality casts to teach students about diversity in diet in the animal kingdom. Casts include three from each group: herbivore (beaver, mountain gorilla, hippopotamus), carnivore (coyote, African lion, alligator), and omnivore (human, grizzly bear, baboon).

Test for the presence of bacteria in your workspace before and after cleaning with this TSA Microbiology Experiment Kit.

Students investigate the inheritance of the ability to taste sodium benzoate by constructing a pedigree of the ability of members of their family to taste them. Includes: 1 vial sodium benzoate, 1 vial control papers (100 papers per vial), and a family pedigree chart. *Test Paper Factoid: Taste papers can be used to demonstrate inheritance. The ability to taste PTC is a hereditary trait. 7 out of 10 people will taste it. Sodium Benzoate tastes sweet, salty, bitter or will be tasteless to different people. Thiourea tastes bitter to most but is tasteless to some!