Question

write any five characteristics features of phylum
*porifera
*cindaria​

Answer 1

Explanation:

Characteristic Features of Phylum Porifera

They are generally marine aquatic organisms, with a few freshwater species.

Their bodies are asymmetrical.

Body shape can be cylindrical, vase-like, rounded or sac-like.

They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer.

Characteristics of Cnidaria:

Radially Symmetrical.

Body multicellular, few tissues, some organelles.

Body contains an internal cavity and a mouth.

Two different forms exist, medusa and polyp.

Reproduction is asexual or sexual.

Has a simple net like nervous system.

Has a distinct larval stage which is planktonic.

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Answer 2

Characteristic Features of Phylum Porifera

•They are generally marine aquatic organisms, with a few freshwater species.

•Their bodies are asymmetrical.Body shape can be cylindrical, vase-like, rounded or sac-like.

•They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer. •There is a gelatinous, non-cellular mesoglea, in between these two layers. This contains many free amoeboid cells.

•The body has many pores called the ostia and a single large opening called osculum at the top.

Characteristics of Cnidaria:

•Radially Symmetrical.

•Body multicellular, few tissues, some organelles.

•Body contains an internal cavity and a mouth.

•Two different forms exist, medusa and polyp

•Reproduction is asexual or sexual.

•Has a simple net like nervous system.

Explanation:

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