Question

is every insectivorous plant carnivorous

Answer 1

The Carnivores plants are the plants which get nutrients from trapping and eating animals. They are often called as Insectivores Plants.
But not always a insectivore plant is a carnivore.............!!that I think..

Answer 2

Yes, all insectivorous plants are carnivores as they depend on animals
(insects) for nitrogen. Insectivorous plants grow on places that are defecient in nitrogen.There is nitrogen present in all organisms.So to get nitrogen insectivorous plants trap and digest insects and derive nitrogen from them.