Question

Why do insectivorous plants eat insects when they can carry out photosynthesis?

Answer 1

insectivorous plants eat insect even though they can carry out photosynthesis because it is not possible that sunlight remains constant in the habitat in which they survive,

So to complete the requirement of food even when there is no sunlight, they need other mode of nutrition so they follow heterotrophic mode of nutrition as well in the form of insectivorous plant