With Specific Examples, Compare And Contrast Organ

With specific examples, comp ar and contrast organisms from the manikines Polychaeta and Diplopoda The clade, Protostomia force out be split into deuce superphyla, namely Lophotrochozoa and Ecdysozoa. Polychaeta is a phratry of annelids that f every(prenominal)s 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 dickens sessile or free-moving. Each member givees a fit of parapodia, which are fleshy appendages that may be circumscribed to caution various functions such as locomotion, filter feeding and vapourific exchange. The parapodia possess many chaetae, which may also be modified to suffice a particular function. Class Diplopoda refers to a throng 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 prototypic four and the last segment, which move over none). This essay aims encounter upon the major differences and similarities between these two classesTABLE 1. Both polychaetes and diplopods are triploblastic coelomates. So, some(prenominal) go through a true coelom. However, in the polychaete, the coelom is unclutter 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 circulative system. In terms of skeletal support, diplopods utilise a unvoiced exoskeleton composed of ?-chitin, to support and protect their body. The presence of this! exoskeleton dictates that diplopods will have to periodically shed it in order to allow for growth, in a process known as ecdysis. Ecdysis, of course is pleonastic in polychaete worms. Both classes exhibit two assort types of segmentation. Polychaetes exhibit metamerism. Their body begins with a prostomium exhibiting cephalization in the anterior region, recur segments known as metameres, ending in an anal segment in the posterior region. The metameres...If you want to get a full phase of the moon essay, order it on our website: OrderCustomPaper.com

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