Aschelminthes is bilaterally symmetrical and triploblastic. These are mostly aquatic, free living or parasitic. Their body is three layered which is ectoderm, mesoderm and endoderm.

Correct Option: A

Aschelminthes is bilaterally symmetrical and triploblastic. These are mostly aquatic, free living or parasitic. Their body is three layered which is ectoderm, mesoderm and endoderm.

Triploblastic condition can be seen in flat worms. Ctenophores, sponges and corals are diploblastic.

Correct Option: A

Triploblastic condition can be seen in flat worms. Ctenophores, sponges and corals are diploblastic.

In Ctenophora, sexes are not separate. Reproduction takes place only by sexual means. In Cnidaria, which exist in both forms, polyps produce medusae asexually and medusae form the polyps sexually. Porifera (sponge) reproduce asexually by fragmentation and sexually by formation of gametes. Protozoans come under protista which reproduce asexually and sexually by cell fusion and zygote formation.

Correct Option: A

In Ctenophora, sexes are not separate. Reproduction takes place only by sexual means. In Cnidaria, which exist in both forms, polyps produce medusae asexually and medusae form the polyps sexually. Porifera (sponge) reproduce asexually by fragmentation and sexually by formation of gametes. Protozoans come under protista which reproduce asexually and sexually by cell fusion and zygote formation.

Planaria is a flatworm which possesses a high capacity of regeneration.

Correct Option: B

Planaria is a flatworm which possesses a high capacity of regeneration.

Gorgonia (sea-fan) is an animal. All animals lack cell wall.

Correct Option: B

Gorgonia (sea-fan) is an animal. All animals lack cell wall.