Body is enclosed in dorsal carapace and ventral plastron in

Options

A. crocodiles
B. lizards
C. snakes
D. chelonians

Answer

To solve the question "Body is enclosed in dorsal carapace and ventral plastron in," we can follow these steps:

### Step 1: Understand the Terms
- **Dorsal Carapace**: This refers to the hard upper shell that covers the back of certain animals.
- **Ventral Plastron**: This is the hard shell that covers the belly or underside of the same animals.

### Step 2: Identify the Organisms
- The question provides four options:
1. Crocodiles
2. Lizards
3. Snakes
4. Chelonians

### Step 3: Analyze Each Option
- **Crocodiles**: They have a tough skin but do not possess a carapace and plastron.
- **Lizards**: They have scales and do not have a carapace or plastron.
- **Snakes**: Similar to lizards, snakes have scales and lack a carapace or plastron.
- **Chelonians**: This group includes turtles and tortoises, which are characterized by having both a dorsal carapace and a ventral plastron.

### Step 4: Conclusion
Based on the analysis, the correct answer is **Option 4: Chelonians**. They are the only group among the options that possess both a dorsal carapace and a ventral plastron.

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