Question

characteristic features of phylum Annelida.

Answer 1

Characteristics of Phylum Annelida:

1)They have a long and segmented body.

2)Annelids are bilaterally symmetrical.

3)They are triploblastic.

4)Also, they exhibit organ system grade of organisation, showing organ differentiation.

5)The body is covered with a thin cuticle.

6)They are coelomate. A body cavity or coelom is present.

Answer 2

Answer:

1. Body of these animals is long,cylindrical and metanerically segmented.

2. Most of the animals are free living , but few are ectoparasites. Free living animals maybe marine or freshwater dwellers or terrestrial.

3. These animals are triploblastic, bilaterally symmetrical and eucoelomate.

4. Their body is covered with special cuticle.

5. These animals are either hermaphrodite or unisexual.

6. Examples.. Earthworm, Leech.

______________________________