At which stage in its life cycle does the silkworm yield the fiber of commercial use

At which stage in its life cycle does the silkworm yield the fiber of commercial use

(1) Larva 
(2) Egg
(3) Pupa 
(4) Imago

Answer: (3) Pupa 

Explanation:
  • It is during the pupa or cocoon stage that the silkworm yields the fiber of business use. 
  • As the silkworm plans to pupate, it turns a defensive cover. 
  • About the size and shade of a cotton ball, the casing is built from one constant strand of silk, maybe 1.5 km long (almost a mile). 
  • The silk cover fills in as security for the pupa.

At which stage in its life cycle does the silkworm yield the fiber of commercial use

Post a Comment

0 Comments