Question

What are the characteristics of hemichordates?

Answer 1

Hemichordata:

1. The body of hemichordates is worm-like, thus they are commonly called worm animals.
2. They have a bilaterally symmetrical body and are triploblastic in nature.
3. They have a true coelom.
4. Proboscis, collar, and trunk are the three main parts of the body.
5. Gill slits are present that perforate the pharynx.
6. From the roof of the buccal cavity a buccal diverticulum arises.
7. The buccal diverticulum is also known as the stomochord.
8. It is a projection of the digestive tract.
9. Examples of hemichordates include Balanoglossus, Saccloglossus, etc.