With Specific Examples, Compare And Contrast Organ

With specific examples, comp ar and contrast organisms from the manikines Polychaeta and Diplopoda The clade, Protostomia move be split into deuce superphyla, namely Lophotrochozoa and Ecdysozoa. Polychaeta is a phratry of annelids that f alones under Lophotrochozoa, while Diplopoda is a class of arthropods that falls under Ecdysozoa. Class Polychaeta refers to a company of generally marine divideed worms, which can be twain sessile or free-moving. Each piece birthes a check of parapodia, which are fleshy appendages that may be circumscribed to keeping various functions such as locomotion, filter feeding and vapourific exchange. The parapodia possess many chaetae, which may also be modified to act a particular function. Class Diplopoda refers to a classify of terrestrial arthropods, commonly known as millipedes. They are all free-moving. Diplopods are also segmented, with each segment possessing two pairs of legs (except for the world-class four and the last segme nt, which move over none). This essay aims pass upon the major differences and similarities between these two classesTABLE 1. Both polychaetes and diplopods are triploblastic coelomates. So, some(prenominal) demand a true coelom. However, in the polychaete, the coelom is dispatch undecomposed with fluid and behaves as a hydrostatic skeleton.

On the new(prenominal) hand, in diplopods, the coelom is reduced into a haemocoel, which is integrated into their circulatory system. In terms of skeletal support, diplopods utilise a disfranchised exoskeleton composed of ?-chitin, to support and protect their body. The presence of this exoskeleton dictates th! at diplopods will have to periodically shed it in order to allow for growth, in a process known as ecdysis. Ecdysis, of course is wasted in polychaete worms. Both classes exhibit two sundry(a) types of segmentation. Polychaetes exhibit metamerism. Their body begins with a prostomium exhibiting cephalization in the anterior region, replicate segments known as metameres, ending in an anal segment in the posterior region. The metameres...If you want to get a extensive essay, order it on our website: OrderCustomPaper.com

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