The respiratory organs is aquatic whale are

Options

A. Gills
B. Lungs
C. Trachea
D. Skin

Answer

### Step-by-Step Solution:

1. **Identify the Organism**: The question refers to the respiratory organs of aquatic whales. It is important to note that whales are mammals, despite living in an aquatic environment.

2. **Understand the Classification**: Whales belong to the class Mammalia. All mammals, regardless of whether they are aquatic or terrestrial, possess lungs as their primary respiratory organs.

3. **Differentiate Between Respiratory Organs**:
- Aquatic organisms like fish typically have gills for respiration.
- However, whales, being mammals, do not have gills; instead, they have lungs.

4. **Function of Lungs**: The lungs in whales are responsible for the uptake of oxygen (O2) and the removal of carbon dioxide (CO2) from their bodies, similar to other mammals.

5. **Evaluate the Options**:
- Gills: Not applicable to mammals; they are found in fish.
- Trachea: A part of the respiratory system but not a primary respiratory organ.
- Skin: Functions as a respiratory organ in some organisms like earthworms and frogs, but not in mammals.
- Lungs: Correct answer, as they are the primary respiratory organs in mammals, including whales.

6. **Conclusion**: The respiratory organs in aquatic whales are lungs.

### Final Answer:
The respiratory organs in aquatic whales are **lungs**.

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