Bombyx mori 300 to about 900 m (1,000 to 3,000 ft) long. The fibers are very fine and lustrous, about 10 μm (0.0004 in) in diameter. About 2,000 to 3,000 cocoons are required to make a pound of silk (0.4 kg). At least 70 million pounds of raw silk are produced each year, requiring nearly 10 billion cocoons. Due to its small size and ease of culture, the silkworm has become a model organism in the study of lepidopteran and arthropod biology. Fundamental findings on pheromones, hormones, brain structures, and physiology have been made with the silkworm. One example of this was
Mori language Mori language In its broad sense, Mori is a cover term used to refer collectively to two languages of Central Sulawesi: Mori Bawah and Mori Atas. Sometimes a third language, Padoe, is also included. Originally the term 'Mori' referred only to certain clans living on the upper course of the Laa River in Central Sulawesi, that is, today's Mori Atas or 'Upper Mori' people. After the imposition of Dutch colonial rule in the early twentieth century, the name was extended to include peoples living eastward along the lower course of the Laa and in the Tambalako watershed (today's Mori Bawah