Silk
fine, lustrous, natural fiber produced by the larvae of various silk moths, especially the species Bombyx mori
Does Bombyx mori have a monopoly over silk production?
A monopoly refers to the exclusive supply of a good. The Bombyx mori is a moth famous for its silk production. Spiders, beetles, caterpillars, and fleas produce silk. Wild silk produced by caterpillars has been used in China, Europe, and South Asia since antiquity.
In a monopoly, how many different entities supply goods? What insects produce silk? How many things are listed in #2? Is #3 equal to #1?