Model, Stem Cross Section of Creeping Buttercup (Ranunculus repens), with collateral open vascular bundles, The model shows the typical stem structure of a dicotyledon enlarged by a factor of 250, Dimensions: 28 x 7 cm, weight: 3.25 kg
Orbit Small Dna Model Class Kit, Helps students understand DNA, Contains twelve model kits and instructions for guided learning, Students make models of 6 base pairs each that can be joined together to make a molecule of up to 72 base pairs