Question

Why do insectivorous plants trap insects?
A) They are carnivorous
B) They like killing insects
C) They lack certain nutrients
D) None of these

Answer 1

Insectivorous plants grow in soil, where the soil is poor or low in nutrients. This type of plant is usually present in nitrogen deficient soil. Insects are the most common prey for Insectivorous plants.

Complete answer:
INTRODUCTION :
The plants that eat insects are called insectivorous plants. They are also known as carnivorous plants. The carnivorous plants grow in nutrition (nitrogen) deficient soil and they derive energy from photosynthesis. They derive nutrition by trapping and consuming insects.
A) THEY ARE CARNIVOROUS : Carnivorous plants are the type of flowering plants, adapted for capturing insects and digesting the insects and other animals by means of ingenious pitfalls and traps.
B) THEY LIKE KILLING INSECTS : The insectivorous plants have the ability to trap and kill insects for their survival. They derive nutrients by killing insects.
C) THEY LACK CERTAIN NUTRIENTS : Insectivorous plants are commonly present in nutrition (Nitrogen) deficient soil. These plants take some or most of their nutrients (but not energy) by trapping and digesting the insects and other organisms. They trap insects because, lack nutrients for their survival.

Thus, the correct answer is option C) They lack certain nutrients

NOTE :
Insectivorous plants are most commonly found in bogs and fens (marshes)where nutrition is low with abundant water and sunshine. These plants are classified based on their trapping mechanism (The pitfall trap, Flypaper traps, snap traps, Lobster-pot traps). Insectivorous plants have certain Antifungal properties.