Skin of mammals is unique in having

Options

A. hair
B. no glands
C. oil gland
D. scales

Answer

To answer the question "Skin of mammals is unique in having what?", we can follow these steps:

### Step 1: Understand the Question
The question is asking about a unique feature of mammalian skin that distinguishes it from the skin of other animal groups.

### Step 2: Identify Features of Mammalian Skin
Mammalian skin has several characteristics, but we need to focus on what makes it unique compared to other animals.

### Step 3: Consider the Options
While the video transcript does not provide specific options, we can infer that the options might include features like hair, scales, oil glands, etc.

### Step 4: Recognize the Unique Feature
The transcript mentions that mammals have hair on their skin, which is a distinctive characteristic. Other animals may have scales (like reptiles) or different types of skin coverings, but hair is unique to mammals.

### Step 5: State the Function of Hair
The function of hair in mammals is primarily to conserve body heat, providing insulation. This is crucial for maintaining a stable internal temperature.

### Step 6: Conclude the Answer
Thus, the unique feature of mammalian skin is the presence of hair.

### Final Answer
The skin of mammals is unique in having hair.

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