Caterpillars drop on strand of silk when disturbed is known as

Solution (By Examveda Team)

Caterpillars drop on strands of silk when disturbed is known as Reflex dropping.
Reflex bleeding is a defensive behaviour in some insects where a noxious fluid is exuded by the insect when threatened.
The fluid flows out through pores in the exoskeleton. The secretion consists of a bitter fluid, including haemolymph and noxious chemicals.