With Specific Examples, Compare And Contrast Organ

With specific examples, comp ar and contrast organisms from the manikines Polychaeta and Diplopoda The clade, Protostomia understructure be split into deuce superphyla, namely Lophotrochozoa and Ecdysozoa. Polychaeta is a phratry of annelids that f alls 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 piece beares a mate of parapodia, which are fleshy appendages that may be circumscribed to tutorship various functions such as locomotion, filter feeding and vapourific exchange. The parapodia possess many chaetae, which may also be modified to reply a particular function. Class Diplopoda refers to a crowd 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 basic four and the last se gment, which move over none). This essay aims fortune upon the major differences and similarities between these two classesTABLE 1. Both polychaetes and diplopods are triploblastic coelomates. So, both(prenominal) moderate a true coelom. However, in the polychaete, the coelom is win 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 inarticulate exoskeleton composed of ?-chitin, to support and protect their bod y. 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 unembellished in polychaete worms. Both classes exhibit two versatile types of segmentation. Polychaetes exhibit metamerism. Their body begins with a prostomium exhibiting cephalization in the anterior region, reiterate segments known as metameres, ending in an anal segment in the posterior region. The metameres...If you want to get a total essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper