If a particular animals has shelled eggs, hair and teats on the body has cloaca, it may be a connecting link between:

Options

A. Reptiles and birds
B. Birds and mammals
C. Reptiles and mammals
D. None of the them

Answer

To determine the connecting link between different groups of animals based on the given characteristics, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Characteristics**: The animal in question has shelled eggs, hair, teats, and a cloaca.

2. **Analyze Shelled Eggs**: Shelled eggs are a characteristic primarily associated with reptiles. Birds also lay shelled eggs, but they do not have hair or teats.

3. **Analyze Hair and Teats**: Hair and teats are characteristics of mammals. Mammals are known for having hair on their bodies and teats for nursing their young.

4. **Analyze Cloaca**: The cloaca is an organ that serves multiple functions (excretion and reproduction) and is found in some reptiles and in monotremes (a subgroup of mammals).

5. **Determine Possible Connections**:
- Since the animal has shelled eggs, it shares a characteristic with reptiles.
- The presence of hair and teats indicates a mammalian characteristic.
- Therefore, the animal exhibits features of both reptiles (shelled eggs) and mammals (hair, teats, and cloaca).

6. **Conclusion**: The animal can be considered a connecting link between reptiles and mammals. The specific organism that is often cited as a link between these two groups is Lysinops.

### Final Answer:
The animal may be a connecting link between reptiles and mammals.

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