Question

explain how pitcher
plants get their nutrition​

Answer 1

when any small insect etc goes to the pitcher plant due to its smell it eats the insect and gains it's nutrition because pitcher plant is carnivorous plants

Answer 2

Pitcher plant derives nutrition just the way any other plant does . It takes water and minerals from the soil and food by photosynthesis. But the soil in which it grows doesn't has nitrogen so it uses the pitcher for killing small insects and then digesting them to derive nitrogen from the animal.