Porifera (spongiaria, sponges) a phylum of multicellular animals that are not included in the animalia sponges are sessile, benthic, filter feeders with a bag-like body, a central cavity, and an outer surface pierced with tiny openings (ostia), through which water enters, and an upper, larger opening (osculum), through which it leaves. Porifera sponges porifera, which means pore bearer is made of the organisms we call sponges they are the least evolunationaly advanced phylum in the. Classification of porifera : on the basis of types of endoskeleton, phylum porifera is divisible into three classes class 1 calcarea or calcispongiae (1) skeleton is formed. Smith, dg 2001 porifera (sponges) pennak's freshwater invertebrates of the united states, 4th edition: 41-60 underhill, jc, wd schmid & de gilbertson 1982 taxonomic keys to the common animals of the north central states, exclusive of the parasitic worms, terrestrial insects, and birds, 4th edition 205 pp jewell, m 1959. Phylum : porifera 1 what experiment suggested that porifera evolved from colonies of protists 1 these custom papers should be used with proper reference. We will write a custom essay sample on zoology unit 2 – phylum porifera or any similar topic only for you order now parazoa sponges have no. Essays phylum lab phylum lab 9 september 2016 kingdom, phylum, class, order, family, genus, species all animals are in the kingdom animalia.
Phylum chordata essay a custom essay sample on phylum chordata for only $1638 $139/page order now related essays phylum porifera chordates and. The porifera or sponges are marine animals and they consist of loosely organized cellswhile all animals have unspecialized cells that can transform into specialized. This is a biology paper about the phylum porifera uses the example of sponges(a member of the phylum porifera) essay by blondncrazy817, junior high. Phylum porifera contains 8,122 valid species with an estimated 4,000 awaiting discovery and/or description they are classified in three classes, 25 orders, 127 families and 680 genera the ancient origin, simple body organization, close microbial associations and morphological plasticity of sponges make them one of the most challenging groups in.
Phylum porifera animals, phylum porifera cherecters, phylum porifera classification, classification of animals, zoology, assignment help, homework help: definition- they evolved from colonial protozoans. Sponges are members of the phylum porifera (meaning ‘pore-bearing’) and are the oldest of all multi-cellular animals they have been around for approximately 750 million years they lack true tissues but have many cell types that take on these functions sponges are exclusively aquatic, filter. Animals group case study essay the relative number of species contributed to the total by each phylum of animals porifera.
View notes - porifera_outline from biology bsc2011l at fsu outline lab: porifera some links to help with greek/latin. Phylum porifera 1 sponges 2 introduction porifera (po-rif -er-a) (l porus, pore, fera, bearing) most primitive of all animals among the approximately 15,000 sponge species are mostly marine a few exist in brackish water, and some 150 species live in freshwater sessile draws food and water into its body figure 1. The phylum porifera is further divided into classes mainly according to the composition of their skeletons: hexactinellida (glass sponges) have.
Write an essay on phylum cnidaria write an essay on phylum cnidaria on the lab i sent you it says that the phylums porifera, cnidaria. Phylum porifera which lacks any symmetricalness ( dissymmetry ) and phylum cnidaria which has radial symmetricalness list all of the.
Features of porifera: 1 sessile, sedentary and marine 2 body is perforated by numerous pores, called ostia 3 one large opening called osculum 4 shows cellular level of.
Essay info: 502 words there are approximately 7000 living sponge species in the phylum porifera, 2% of which are freswater sponges, and none terrestrial. Kingdom animalia august 12 phylum porifera: morphology: level of organization: ecology order a similar essay written from scratch. Classification of phylum porifera: phylum porifera: classification and features | protozoa research papers, essays. 1 what are poriferans the phylum porifera contains the simplest creatures of the animal kingdom sponges are aquatic sessile organisms (they are unable to move by themselves and they remain attached to substrates. The approximately 5,000 living sponge species are classified in the phylum porifera writework has over 100,000 sample papers prof jacob leland, phd. A description of phylum porifera essayphylum: porifera a sponge has differentiated cells and functionally distinct layers the ameobocytes secrete spicules which stack up together to make the sponge the choanocytes are composed of a flagellum and a collar (collar cells. The sponges were considered to be plant-animal classification until 19th century because they were not able to move, especially during their adult life where.