Spider silk spinning field, the spinneret apparatus of an adult "Araneus diadematus" (garden cross spider) consists of the glands shown below. Similar multiple gland architecture exists in the black widow spider. In order to artificially synthesise spider silk into fibres, there are two broad areas that must be covered. These are synthesis of the feedstock (the unspun silk dope in spiders), and synthesis of the spinning conditions (the funnel, valve, tapering duct, and spigot). There have been a number of different approaches. The molecular structure of unspun silk is both complex and extremely long. Though this endows the silk fibres with their
Botanical Garden of Tver State University Garden identified the following sectors: The following departments: The Division is divided into sub-sections: Small-leaved mixed forest, broadleaf forests, oak, the site of the South European deciduous forests Placed on the territory of some 350 species. The most widely represented the family Araceae (about 50 species), Orchidaceae (about 20 species), Polypodiaceae (about 30 species), Arecaceae (15 species), Bromeliaceae (10 species), Agavaceae (10 species), Gesneriaceae (10 species), Liliaceae (10 species). At the station placed 135 species. Most of the species collected in the collection of natural habitats. Represented by steppe species, for which the Tver region is the northern boundary of