Question

Why do insectivorous plants trap insects although
They
are, auto trophs​

Answer 1

Answer:

for nitrogen

therefore they are called partially autotrophs

Answer 2

Answer: Insectivorous plants trap insects for fulfilling their nitrogen requirement.

Explanation: As we all know all plants are autotrophs in nature, but insectivorous plants eats insects. Because  insectivorous plants generally grow in  humid and moist area where soil is almost nitrogen deficient to fulfill their nitrogen demand these plants traps insects.