Smoking â Tobacco use is one of the major risk factors for cancer of the pancreas. It is believed that those who smoke are twice as likely to get the disease. Obesity â As we know, obesity is a strong risk factor for many diseases, not just cancer.
The silkworm is the larva or caterpillar of the domesticated silk moth, Bombyx mori (Latin: silkworm of the mulberry tree). It is an economically important insect, being a primary producer of silk. A silkworm's preferred food is white mulberry leaves, though they may eat other mulberry species and even osage orange. Domestic silk moths are closely dependent on humans for reproduction, as a result of millennia of selective breeding.
10 most extreme places on Earth. Silk is a filament fiber formed from proteins secreted by Bombyx mori, or silkworms. Silkworms are not actually worms, but caterpillars, despite their common name. Humans have practiced silk production, which originated in China, for thousands of years.t is the pupation stage that produces silk, as the larva attach to branches and spin a shell around themselves. The shell is unique to insect pupation, formed by two spinnerets on the larva. The fluid they secrete is high in protein and forms a continuous thread, which is repeatedly wound to form a pod to mature in.