Justify the pitcher plant as a producer.

Why are green plants called producers?

Micro-organism act upon the dead plants to produce

You have heard about serveral insectivorous plants that feed on insects. Nepenthes or the pitches plant is one such example. Which usually grows in shallow water or in marsh lands. What part of the plant os modified into a 'pitcher'? How does this modification help the plant for food even though it can photosynthesize like any other green plant?

Transgenic plants are produced by :

Explain the reason why pitcher plant feeds on other insects although it can perform photosynthesis?

Why the plants are called producers of ecosystem.