Identify the wrong feature of the bird.

Options

A. They have feathers on the body
B. Four chambered heart
C. Breathe through lungs
D. Reproduces by viviparous method

Explanation

To identify the wrong feature of birds from the given options, we can follow these steps:

1. **Understand the Features of Birds**: Birds belong to the class Aves. They are characterized by specific features that distinguish them from other animals.

2. **Analyze Each Option**:
- **Option A**: "They have feathers on the body." - This is a correct feature of birds.
- **Option B**: "Four-chambered heart." - Birds do indeed have a four-chambered heart, which is a correct feature.
- **Option C**: "Breathe through lungs." - Birds breathe through lungs, which is also a correct feature.
- **Option D**: "Reproduce by the YP porous method." - This option is incorrect. Birds reproduce by laying eggs (oviparous), while YP porous refers to mammals that give birth to live young (viviparous).

3. **Identify the Wrong Feature**: After analyzing all the options, we find that Option D is the wrong feature because birds do not reproduce by the YP porous method; they reproduce by laying eggs.

4. **Conclusion**: The wrong feature of the bird is Option D.