What are insectivorous plants? Give examples.

Explanation

### Step-by-Step Solution:

1. **Definition of Insectivorous Plants**:
Insectivorous plants are specialized plants that derive some or most of their nutrients from trapping and consuming insects and other small organisms. This adaptation is particularly useful in nutrient-poor environments where the soil lacks essential nutrients, especially nitrogen.

2. **Nutrient Requirement**:
These plants primarily need nitrogen, which is crucial for their growth and development. Since the soil in which they grow is often deficient in nitrogen, they have evolved mechanisms to trap insects to obtain this vital nutrient.

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