Comparison Between Platyhelminthes and Nematodes

Evolution gives rise to diversity. The owns of a common ancestor may film developed and been adapted for different environmental conditions, resulting in morphological differences among present day organisms. In fellowship to sterilise sense of the large diversity and form relationships between the organisms, organisms atomic number 18 classified into different congregations. Members of each convocation w atomic number 18 certain dual-lane characteristics that distinguish them from members of other groups. This essay exit comp are twain vermiform phyla, Platyhelminthes and Nematoda in scathe of their forcible traits, biological systems as well as ecological importance. some(prenominal) Platyhelminthes and Nematodes are from the demesne Animalia. Members of Kingdom Animalia are multicellular, heterotrophic and motile at approximately stage of their purport cycle. The twain phyla are also convertible in terms of symmetry, train of body organisation, tissue and immature development. Platyhelminthes and Nematodes pretend bilateral symmetry and organ level of organisation. They are triploblastic which elbow room they have an ectoderm, mesoderm and endoderm. In addition, both(prenominal) phyla have similar embryonic development and can be categorized under the group Protostomia. The let outs of animals classified under Protostomia are formed from the blastospore, the introductory opening to embryonic gut.

They also have spiral cleavages in which the embryonic cells divide diagonally. These animals have determinate cleavages in which the developmental fate of cells is fixed early. According to Mr Siva, the r! emoval of some of these cells during the embryonic stage of their life cycle entrust result in abnormal development. Protostomia can be push divided into Lophotrochozoa and Ecdysozoa. This is where the two phyla differ. Platyhelminthes are Lophotrochozoans while Nematodes are Ecdyzoans. A distinguishing feature of Lophotrochozoans is the lophophore, a ring of tentacles with cilia around their mouth used for feeding. By comparison, the mouthparts of Nematodes are...If you want to get a upright essay, order it on our website: OrderCustomPaper.com

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