Question

Ichthyophis belongs to-
A) Amphibia
B) Mollusca
C) Annelida
D) Reptiles

Answer 1

Hint: It is also called Asian caecilians and belongs to the genus caecilians. It can stay in all environments but prefer moisture mostly.

Complete Answer:
A) Amphibia are vertebrates that are small in size and can live in both terrestrial and aquatic environments. It was first developed in the Devonian period. Frogs and several others come under this group. Amphibians require water for completing their life cycle in case of reproduction. Ichthyophis also needs water in their life cycle and can live on lands also.

B) Molluscs are mainly aquatic organisms found mainly in oceans. Marine organisms come under this group. They are invertebrates. Their body is covered with a mantle having a cavity that is used to breath. Presence of radula makes a special characteristic to molluscs.

C) Annelids are also known as ringworm or earthworms. The special character of them is that they are triploblastic in nature and coelom is present. Their body is divided by ring-like structures called annuli.Their locomotion is dependent on parapodia. And their bodies are sometimes divided into small segments called septa.

D) Reptiles are vertebrate organisms that are tetrapods. Snakes, lizards come under this group. Aquatic larval stage is absent in their life cycle. They are mainly oviparous but sometimes viviparous.

Hence Option A: Amphibia is the correct answer.

Note: Ichthyophis are long snake-like animals that need water in their life cycle and prefer moist environments. Their head has a snout that is round in structure and possesses a tentacle adjacent to the mouth.