Source of nutrition in frog during hibernation, is

Options

A. Mucous present in soil
B. Dead organisms found in soil
C. Nutrition is not required
D. Stored fat

Answer

### Step-by-Step Solution:

1. **Understanding Hibernation in Frogs**:
- Hibernation is a state of inactivity and metabolic depression in animals during winter. Frogs enter this state to survive cold temperatures.

2. **Feeding Behavior During Hibernation**:
- During hibernation, frogs become inactive and do not feed. This means they do not consume food from their environment.

3. **Source of Nutrition**:
- Since frogs do not feed during hibernation, they rely on stored energy. The primary source of this stored energy is the fat body.

4. **Fat Bodies**:
- Fat bodies are specialized structures in frogs that store fat. They are typically yellowish to orange in color and are located near the frog's genitals.

5. **Function of Fat Bodies**:
- The fat stored in these bodies serves as an energy reserve that the frog utilizes during periods of inactivity, such as hibernation. Additionally, fat bodies play a role in mating and metamorphosis.

6. **Conclusion**:
- Therefore, the correct answer to the question about the source of nutrition in frogs during hibernation is that it comes from stored fat in the fat bodies.

### Final Answer:
The source of nutrition in frogs during hibernation is stored fat.

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