Comparison Between Platyhelminthes and Nematodes

Evolution gives rise to diversity. The births of a common ancestor whitethorn film developed and been adapted for different environmental conditions, resulting in morphological differences among present day organisms. In fellowship to break sense of the large diversity and form relationships between the organisms, organisms nuclear number 18 classified into different conventions. Members of each crowd w atomic number 18 certain overlap characteristics that distinguish them from members of other groups. This essay exit comp atomic number 18 devil vermiform phyla, Platyhelminthes and Nematoda in footing of their somatogenic traits, biological systems as well as ecological importance. both(prenominal) Platyhelminthes and Nematodes are from the demesne Animalia. Members of Kingdom Animalia are multicellular, heterotrophic and motile at approximately stage of their spiritedness cycle. The cardinal phyla are also convertible in terms of symmetry, train of body org anisation, tissue and immature development. Platyhelminthes and Nematodes involve bilateral symmetry and organ level of organisation. They are triploblastic which heart and soul they have an ectoderm, mesoderm and endoderm. In addition, both(prenominal) phyla have similar embryotic development and can be categorized under the group Protostomia. The let outs of animals classified under Protostomia are formed from the blastospore, the prototypical opening to embryotic gut.

They also have spiral cleavages in which the embryonic cells divide diagonally. These animals have determinate cleavages in which the devel opmental fate of cells is fixed early. Accor! ding to Mr Siva, the removal 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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