Model of HIV virus 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 is removable and condoms can be put underneath to provide a message regarding measures to take in protecting against HIV infections, mounted on base with key card.
Model of HIV virus 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 is removable and condoms can be put underneath to provide a message regarding measures to take in protecting against HIV infections, mounted on base with key card.
Eight-piece model for comparison of three different types of germination methods: monocot, dicot and gymnosperm.
Using suitable models from the plant world, students can study root development, sprouting methods and the structure of the seedling. Each component of the model is removable to facilitate closer examination, mounted on base with key card.
Eight-piece model for comparison of three different types of germination methods: monocot, dicot and gymnosperm.
Using suitable models from the plant world, students can study root development, sprouting methods and the structure of the seedling. Each component of the model is removable to facilitate closer examination, mounted on base with key card.
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. Showing epidermis, lentice, cork layer, cork cambium, cortical parenchyma, starch sheath medullary rays, phloem, sieve plate, sieve tube, phloem parenchyma and inter fasicular cambium, Xylem, pitted vessels pith etc, mounted on base with key card.
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. Showing epidermis, lentice, cork layer, cork cambium, cortical parenchyma, starch sheath medullary rays, phloem, sieve plate, sieve tube, phloem parenchyma and inter fasicular cambium, Xylem, pitted vessels pith etc, mounted on base with key card.
