A) Salivary glands of moth secrete silk
B) Larval form of moth secretes silk
C) Silk is extracted from cocoon of moth by boiling
D) Both b and c
Correct Answer: D
Solution :
The caterpillers larva of moth secretes a sticky fluid through silk gland. The secrete fluid comes out through spinneret and takes the form of long fine thread of silk.
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