This model shows the transverse and longitudinal section of a dicotyledonous stem in which case the cambium ring has been formed but no secondary growth has yet taken place. Useful model for study of ....
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AIDS VIRUS HIV virus model is enlarged millions of times, shows the outer lipid membrane with protein structures and the internal nucleus which contains the viral hereditary matter [RNA]. The nucleus ....
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Showing the general structure, internal viscera, water vascular system and arm in T.S. showing details of tube feet, mounted on board, with key card. Overall dimensions 500 x 450 x 75 mm.approx. ....
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Typical,a three dimensional model with one side dissected to show complete internal structures,mounted on base,with key card. Overall dimensions 220 x 130 x 430 mm.approx. ....
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A set of 12 models, showing detailed stages in meiotic cell division, realistically coloured to bring out the detailed structures as seen under a microscope. A very useful and instructive model, mount....
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A set of 8 models, showing the process of mitotic cell division. The chromosomes are painted for easy identification.Models are approx. 150 x 120 mm. ....
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Natural size,Domestic hen, the right side shows the feathers and the other side all the internal organs, on base with key card. ....
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To run 30 hours in vertical or horizontal position and to carry weights, with clock movement based on heavy metal stand. ....
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For demonstration of heliotropism and geotropism, germinating seedings are pinned to the cork table which is rotated by an electric motor. About 70mm dia cork linked disc, with fitting to take specime....
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