Question

Give the characteristic of phylum hemicordata​

Answer 1

Answer:

1. Hemichordata is bilaterally symmetrical and triploblastic animal.
2. They are exclusively marine animals.
3. They can be solitary or in colonies.
4. Hemichordata have a true body cavity or coelom.

Answer 2

Phylum - Hemichordata

• Phylum hemichordata consists of a small group of worm- like marine animals.

• They show organ-system level of organisation.

• They are bilaterally symmetrical, triploblastic and coelomate animals.

• Their body is cylindrical and composed of an anterior proboscis, a long trunk  and a collar  .

• Open circulatory system.

• Respiration-through gills.

• Sexes are separate.

• Fertilisation is external.

• Development is indirect.

Eg :- Balanoglossus, Saccoglossus