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.

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.

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.

Rostellum and hooks are absent in Taenia saginata.

Correct Option: C

Rostellum and hooks are absent in Taenia saginata.

The body of Taenia is ribbon like and is divided into segments called proglottids. Each proglottid has one or two sets of male and female reproductive organs.

Correct Option: D

The body of Taenia is ribbon like and is divided into segments called proglottids. Each proglottid has one or two sets of male and female reproductive organs.