Question

write the characteristics features of Porifera and colentrata with examples​

Answer 1

Explanation:

Characteristic features of phylum Porifera:

• Poriferans are marine animals.
• They are asymmetrical.
• They exhibit cellular level of organisation.
• Sponges are hermaphrodite, i.e. eggs and sperms are produced by the same individual.

Answer 2

Answer:

Characteristics of Phylum Porifera

The cells of Poriferans are loosely organized.

They are mostly found in marine water. ...

They are either radially symmetrical or asymmetrical.

Their body is usually cylindrical.

The scleroblast secretes spicules while spongin fibres are secreted by spongioblasts.

Characteristic Features of Phylum Coelenterata

They are multicellular organisms, exhibiting tissue grade of the organisation.

They are diploblastic, with two layers of cells, an outer layer called the ectoderm and the inner layer called the endoderm. ...

They show radial symmetry.