What is not correct about Amphibian?

Options

A. They don't have scales on their body
B. Amphibians have three chambered heart
C. They breathe through gills, lungs and skin
D. None of the above

Explanation

To determine which statement is not correct about amphibians, we will analyze each option provided:

1. **Option A: They don't have scales on their body.**
- Amphibians indeed do not have scales. Instead, their skin is usually moist and covered with mucus, which helps in respiration and prevents dehydration. This statement is correct.

2. **Option B: Amphibians have a three-chambered heart.**
- Amphibians possess a three-chambered heart, consisting of two atria and one ventricle. This is a characteristic feature of amphibians. Therefore, this statement is also correct.

3. **Option C: They breathe through gills, lungs, and skin.**
- Amphibians have the ability to breathe through different means depending on their life stage. For instance, many amphibians have gills in their larval stage (like tadpoles), and as adults, they can breathe through lungs and their skin. This statement is correct as well.

4. **Option D: None of the above.**
- Since options A, B, and C are all correct statements about amphibians, option D, which states "None of the above," is the correct answer to the question of which statement is not correct about amphibians.

**Final Answer: D. None of the above.**

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