Upper lip is cleft in

Options

A. Hare
B. Rabbit
C. Camel
D. All the above .

Answer

**Step-by-Step Solution:**

1. **Understanding Cleft Lip**: The term "cleft" refers to a split or opening. In this context, a cleft lip indicates a condition where there is an opening in the upper lip, which can occur in various animal species.

2. **Identifying the Species**: The question asks which species have a cleft upper lip. The options provided are:
- Option 1: Unknown
- Option 2: Rabbit
- Option 3: Camel
- Option 4: All of the above

3. **Analyzing Each Option**:
- **Rabbit**: Rabbits have a cleft upper lip which aids in their ability to increase inhalation of air. This adaptation helps them detect predators and prey through smell.
- **Camel**: Camels also possess a cleft upper lip. This adaptation helps them manage excess moisture, allowing them to survive in arid environments.
- **Other Species**: While the question does not specify other species, the cleft lip is notably present in both rabbits and camels.

4. **Conclusion**: Since both rabbits and camels exhibit a cleft upper lip, the correct answer must include both of these species. Therefore, the answer is:
- **Option 4: All of the above**.

**Final Answer**: The upper lip is cleft in all of the above species (rabbit and camel).

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