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Bombyx mori life cycle ppt
Bombyx mori life cycle ppt






bombyx mori life cycle ppt

Many species of scale insects provide dyes that are used in many products, including cosmetics and for coloring cakes, medicines and beverages. Forty percent of all beeswax is used in cosmetic manufacture for lotions, creams, and lipsticks.

bombyx mori life cycle ppt

Britain alone imports 1 million pounds of beeswax, which can be used as a base for ointments, polishes, and candle making. Lac is an important ingredient of many items, including floor polishes, shoe polishes, insulators, various sealants, printing inks, and varnish. This is a product from Lac Scale insects, Laccifer lacca, and most of it is produced in India, from where the world receives some 40 million pounds annually. Most branches of art have exhibited insects in some form, including a great selection of worldwide postage stamps.

bombyx mori life cycle ppt

Bees were depicted on ancient Greek coins. The Egyptians chose a scarab beetle as a symbol of their sun God. Brightly colored wing covers of certain beetles are used for earrings by Jivaro Indians of Ecuador. Native Americans in the United States used parts of insects in a manner similar to feathers in their crafts. Insects have been used by many societies throughout history, and have not been limited to colorful and/or large butterflies and beetles. Butterflies are certainly one of the most appealing creatures in nature, with colors and patterns that are enjoyed by humans most of the year. Insects are well known in various areas of arts and as pleasant to the senses. Researchers use this concept in biological control, and have been dramatically successful in many programs.Īesthetics. The balance of nature depends on the activities of parasites and predators, the majority of which are species of insects. Most silk is produced from the cocoons of the Silkworm, Bombyx mori. Presently, China annually produces some 30,000 tons of raw silk, which accounts for 80 percent of the world's supply. The recognition of silk as a valuable product dates back to China, arguably in the year 2640 B.C. Some insects are eaten as novelties in the United States, but some other societies use beetle grubs and other insects commonly as food. favorably affects some $20 billion dollars in crops per year, including fruits, vegetables, and many nuts.įoods. Honey is certainly high on the list of products made by insects that may be consumed by humans. Honeybees are clearly among the most important of pollinators, and their efforts result in an estimated 80 percent of all pollination in the United States. The value of pollination of plants by insects is nearly incalculable.

  • Eliot Elisofon Photographic Archives, African Art.







  • Bombyx mori life cycle ppt