In the given list, how many animals are oviparous:- Neophron, Balaenoptera, Bufo, Naja, Pteropus, Scoliodon, Hippocampus, Felis, Corvus, Hemidactylus.

Options

A. 4
B. 5
C. 6
D. 7

Answer

To determine how many animals in the given list are oviparous, we will analyze each animal one by one. Oviparous animals are those that lay eggs.

1. **Neophron**: This is a genus of birds, specifically vultures, which are oviparous as they lay eggs.

2. **Balaenoptera**: This refers to a genus of whales, which are mammals. Mammals are primarily viviparous (giving birth to live young), so Balaenoptera is not oviparous.

3. **Bufo**: This is a genus of toads. Toads are amphibians and are oviparous as they lay eggs in water.

4. **Naja**: This is a genus of cobras, which are reptiles. Cobras are oviparous as they lay eggs.

5. **Pteropus**: This is a genus of flying foxes (bats), which are mammals. As mammals, they are viviparous, so Pteropus is not oviparous.

6. **Scoliodon**: This is a genus of sharks. Sharks are generally viviparous, so Scoliodon is not oviparous.

7. **Hippocampus**: This is a genus of seahorses. Seahorses are unique as the males carry the eggs, but they still lay eggs, making them oviparous.

8. **Felis**: This is a genus that includes domestic cats. Cats are mammals and are viviparous, so Felis is not oviparous.

9. **Corvus**: This is a genus of birds that includes crows and ravens. Birds are oviparous as they lay eggs.

10. **Hemidactylus**: This is a genus of geckos, which are reptiles. Geckos are oviparous as they lay eggs.

Now, let's summarize the findings:

- Oviparous animals from the list:
- Neophron (1)
- Bufo (2)
- Naja (3)
- Hippocampus (4)
- Corvus (5)
- Hemidactylus (6)

Thus, there are **6 oviparous animals** in the list.

### Final Answer:
**6 animals are oviparous.**