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.
These insects feed on mulberry trees and weave their cocoons from two silk glands located under their body. The glands produce the natural protein fiber and form a half-mile long cocoon. In Asia, silkworm farms with thousands of these 3-inch worms produce the silk from the cocoons. Spiders are another source of silk. Yes, scientists have found that spider webs are one of the strongest fibers in nature; but itâs hard to extract silk from spiders since they produce only a small amount of it. It would take 27,000 spiders, each spinning a single web, to get one pound of web.