Question

Why are rotifers called wheel animals?

Answer 1

Rotifers:

1. Rotifers are pseudocoelomate animals.
2. They generally live in fresh-water habitats.
3. Rotifers are commonly called wheel animals because the anterior end of their body is covered with cilia, and thus, it appears wheel-like.
4. These are truly planktonic and free-swimming animals
5. They have a wheel-like structure present on their heads that are ciliated and have rotatory action.