Male Frog can be distinguished from female by

Options

A. Nuptial pad
B. Vocal sacs
C. Narrow abdomen
D. All the above

Answer

To distinguish male frogs from female frogs, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Sexual Dimorphism**:
- Sexual dimorphism refers to the differences in appearance between male and female members of the same species. In frogs, this is evident in several physical characteristics.

2. **Identifying Vocal Sacs**:
- Male frogs possess vocal sacs, which are highly developed during the breeding season. These sacs allow males to produce croaking sounds that attract females for mating.

3. **Observing Nuptial Pads**:
- During the breeding season, male frogs develop nuptial pads on their first fingers. These pads, also known as amplexory pads, help males grasp females during mating.

4. **Comparing Body Structure**:
- Male frogs typically have a slender body and a narrower abdomen compared to females. Additionally, males often have darker coloration than females.

5. **Conclusion**:
- Based on the characteristics mentioned, male frogs can be distinguished from female frogs by the presence of vocal sacs, nuptial pads, and differences in body structure.

### Final Answer:
All of the above characteristics can be used to distinguish male frogs from female frogs.