Which one of the following pairs of animals are similar to each other pertaining to feature stated against them

Options

A. Pteropus and Ornithorhyncus - Viviparity
B. Garden Lizard and Crocodile - Three chambered heart
C. Ascaris and Ancylostoma -- Metameric segmentation
D. Sea horse and Flying Fish - Cold blodded

Answer

To solve the question of which pair of animals are similar to each other based on the features stated, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Option 1: Tyropus and Ornithorhynchus (Viviparity)**
- **Tyropus** (Flying Fox or Fruit Bat) is viviparous, meaning it gives birth to live young.
- **Ornithorhynchus** (Platypus) is oviparous, meaning it lays eggs.
- **Conclusion:** This pair does not share the same reproductive feature. **(Incorrect)**

2. **Option 2: Garden Lizard and Crocodile (3 Chambered Heart)**
- **Garden Lizard** has a 3-chambered heart, which is typical for reptiles.
- **Crocodile**, however, has a 4-chambered heart, which is an exception among reptiles.
- **Conclusion:** This pair does not share the same heart structure. **(Incorrect)**

3. **Option 3: Scaris and Encyclostoma (Metameric Segmentation)**
- Both **Scaris** and **Encyclostoma** belong to the phylum Nematoda (roundworms) and do not exhibit metameric segmentation, which is characteristic of annelids.
- **Conclusion:** This pair shares the feature of lacking metameric segmentation. **(Correct)**

4. **Option 4: Seahorse and Flying Fish (Cold-Blooded)**
- Both **Seahorse** and **Flying Fish** are ectothermic (cold-blooded), meaning they cannot maintain a constant body temperature and their body temperature varies with the environment.
- **Conclusion:** This pair shares the feature of being cold-blooded. **(Correct)**

### Final Answer:
- The correct pairs based on the features stated are **Option 3: Scaris and Encyclostoma** and **Option 4: Seahorse and Flying Fish**. However, since the question asks for a single pair that is similar, the most relevant answer based on the given features is **Option 4: Seahorse and Flying Fish**.