Question

CIWS ces Mailings Review View Help Search A A A E 21 Лавьса Лавьсаа Аавьс Аавьсас. Аав Лавьсер 1 Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle S Paragraph Styles Reproductive Structures Other Structures / Adaptations Phylum Porifera Phylum Cnidaria Class Cubozoa Class Hydrozoa Class Scyphozoa Class Anthozoa Phylum Platyhelmenthes Class Cestoda Class Trematoda Class Turbellaria o B ASUS VivoBook end -padn

Answer 1

Phylum porifera reproductive structure by budding or by special cell masses termed as gemmules. Other structural adaptation Choanocytic or choanoderm, lack of mouth and digestive cavity.A canal system of inter communicating cavities for passes of water correct current.
Phylum cnidaria. Reproductive structure. By budding in the form of polyp and sexual in the Medusa form. Other structural adaptation. Special stinging cells the cnidocytes for defence and offence.
Class hydrozoa. Reproductive structure. They usually have both polyp and Medusa form. Other structural adaptation. Gastrovascular cavity lacks septa
Class scyphozoa. Reproductive structure the meadows of form is predominant . It lacks true velum. The polyps reduced but it there's a short manubrium. Other structural adaptation. Mesogloea is thick gelatinous and contain cells. Simple jelly fishes.

Class anthozoa reproductive structure there is only polyp form.

Other structural adaptation. It is without a manubrium. Mesogloea contains cells and fibre.

Class platyhelminthes. Reproductive structure the sexes are mostly United. The anatomy of reproductive system encourages cross-fertilization. Gonads have ducts. Fertilization is internal. Copulatory apparatus is present. Asexual reproduction by transverse fission. Other structural adaptation flame cells are present for excretory system. Life history of an includes larval stages.

Class cestoda. Reproductive structure. Life history in valves two or more host and includes larval stages. Other structural is adaptation. Suckers and hooks in meaning of stocks for attachment in the host. Alimentary canal and mouth are absent. Body is ribbon like.

Class Trematoda. Reproductive structure. Life history of an includes larval forms and involves more than one host. Other structural adaptation. Body is live like and covered by a thick living tegument. Alimentary canal is a present. They have suckers for attachment in the host.

Class turbellaria reproductive structure reproduction is both asexual and sexual. Other structural adaptation. Life history simple. Power of regeneration is well body is a leaf like and covered with delicate partly or fully ciliated epidermis