Which of the following is correct regarding the corresponding animal

Options

A. Macropus– Ear pinna, body hairs, 4 chambered heart
B. Pavo–Long bones ossified, fore limbs modified to wings
C. Ichthyophis–covering on eyelids, Scales present
D. Limulus–chitinous endoskeleton, 3 pair of legs

Answer

To solve the question regarding which statement is correct about the corresponding animal, we will analyze each option provided.

### Step-by-Step Solution:

1. **Analyze the First Option: Macropus (Kangaroo)**
- Macropus is the scientific name for kangaroos.
- Kangaroos are mammals, which means they have certain characteristics such as ear pinna (external ears), body hair, and a four-chambered heart.
- Additionally, kangaroos are marsupials, which means they have a pouch (marsupium) for carrying their young.
- **Conclusion**: This statement is correct.

2. **Analyze the Second Option: Pavo (Peacock)**
- Pavo refers to peacocks, which belong to the class Aves (birds).
- In birds, long bones are typically pneumatic (hollow) to reduce weight for flight, not ossified in the traditional sense.
- The forelimbs of birds are modified into wings for flight.
- **Conclusion**: The statement about long bones being ossified is incorrect.

3. **Analyze the Third Option: Ichthyophis**
- Ichthyophis is a genus of limbless amphibians, commonly known as caecilians.
- Unlike reptiles, caecilians do not have scales; they have smooth, moist skin.
- They are indeed amphibians and do not possess eyelids or scales.
- **Conclusion**: The statement regarding covering on the eyelids and scales is incorrect.

4. **Analyze the Fourth Option: Limulus (King Crab)**
- Limulus refers to the horseshoe crab, which is classified under the phylum Arthropoda.
- Arthropods have an exoskeleton made of chitin, not an endoskeleton.
- The mention of three pairs of legs is also misleading, as horseshoe crabs have five pairs of legs.
- **Conclusion**: The statement about having an endoskeleton is incorrect.

### Final Conclusion:
The only correct statement regarding the corresponding animal is about **Macropus (Kangaroo)**. Therefore, the correct answer is option number one.

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