"micro tube racks"

Model clearly shows the oral groove and their continuation into the gullet and the other side shows the details of the internal structure. The basic model shows details in a lower relief, while the standard model shows a finer detail level.

This dissectible flower helps students learn about angiosperm reproduction.

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.