Question

Pitcher plant and Venus flytrap are green plants and synthesis their food, then, why do they kill insects?​

Answer 1

Answer:

for extra amount of nitrogen.

or

some plant are canivore

Answer 2

Answer:

They feed on insects for this reason they called insectivorous plants. It traps prey in rolled leaf they eat insects for digestion. They also called carnivores

Explanation:

Hope it helps you!