Choose the odd one out w.r.t adaptations in the organisms -

Options

A. biochemical'adaptation are seen in organisms living in great depth of the ocean to face crushing pressure
B. Allen's rule is seen in mammals living in colder climates
C. Altitude sickness is caused because of body not getting enough oxygen due to low atmospheric pressure at high altitude
D. Desert lizards lack the physiological and behavioural means to manage to their body temperature

Answer

To solve the question of identifying the odd one out with respect to adaptations in organisms, we will analyze each option provided in the context of the type of adaptation they represent.

### Step-by-Step Solution:

1. **Identify the Types of Adaptations**:
- Adaptations can be classified into three main types: physiological, morphological, and behavioral adaptations.

2. **Analyze Each Option**:
- **Option 1**: Biochemical adaptation in organisms living in great depths of the ocean to withstand high pressure.
- This is a **physiological adaptation** as it involves internal processes that help the organism survive in extreme conditions.

- **Option 2**: Allen's rule in mammals living in colder climates, where they have shorter ears and limbs to reduce heat loss.
- This is also a **physiological adaptation** because it relates to the body structure and function that helps in thermoregulation.

- **Option 3**: Altitude sickness caused by low atmospheric pressure at high altitudes, leading to insufficient oxygen.
- This is a **physiological adaptation** as it describes the body's response to environmental changes in oxygen availability.

- **Option 4**: The behavior of the digit lizard, which lacks physiological and behavioral means to manage its body temperature.
- This is a **behavioral adaptation**. The digit lizard uses behavioral strategies to regulate its body temperature by moving between sun and shade.

3. **Determine the Odd One Out**:
- Upon analyzing the options, we see that Options 1, 2, and 3 are all examples of **physiological adaptations**. In contrast, Option 4 represents a **behavioral adaptation**.
- Therefore, the odd one out is **Option 4**.

### Final Answer:
The correct answer is **Option 4** (Digit lizard lacks physiological and behavioral means to manage their body temperature).

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