Porifera? Porifera is a phylum under the kingdom of Animalia. Porifera is the oldest phylum in this kingdom and has been around for the last 600 million years. The most common organism in this phylum is sponges. Porifera comes from the Latin words porus (pore) and ferre (bear)‚ meaning "pore-bearer". This is a reference to the numerous holes (pores) on the sponge ’s surface. Characteristics of Porifera All organisms belonging to the phylum Porifera; Have no definite symmetry Have
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PHYLUM PORIFERA DELA CRUZ‚ R.‚ DUMLAO‚ D.‚ PASCUA‚ M.‚ SAN JUAN‚ R.‚1 1Department of Biology‚ College of Science‚ University of the Philippines Baguio July 17‚ 2012 ABSTRACT | | |Sponges [Porifera] are unusual animals whose body plans make interpreting phylogenetic relationships within the group and with other basal | |metazoan taxa a difficult task
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Phylum: 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 amoebocytes and choanocytes are the work force of the sponge--they create the body of the sponge. The major sponge groups of today had an ancestor in the Cambrian period. The sponges reproduce either sexually or asexually. When they reproduce sexually‚ they
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The crab of Phylum Anthropoda is much more advanced and complex than the sponges of Phylum Porifera. One of the main differences that makes crabs more advanced is the fact that crabs have a body cavity which allows them to have different organ systems‚ this is called coelmate. A sponge does not posess a body cavity‚ which is called acolemate‚ but they do posess a Gastrovascular cavity. A Gastrovascular cavity has only one opening‚ the mouth/anus. Being a coelomate is more advanced because it allows
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|(About butterflies) | | | |5 |[pic][pic] |Porifera |1a |Class demospongiae | | |
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adaptations life cycles and economic importance) of the following groups with special reference to the topics mentioned in each group Protozoa: Parasitism‚ conjugation and autogamy‚ medical importance. Porifera: Canal system‚ skeletal structures and their taxonomic value‚ position of porifera in the Animal Kingdom. Coelenterata: Polymorphism; measenteries corals and coral reefs. Platyhelminthes: Parastic adaptations‚ medical importance Nematoda: Medical importance. Anneilda: Coelom‚ metamerism
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explain‚ identify and recognize the phylum under Kingdom Animalia. The phylum that we need to identify was Phylum Porifera‚ Phylum Cnidaria‚ Phylum platyhelminthes‚ Phylum Nematoda‚ Phylum Rotifera‚ Phylum Mollusca‚ Phylum Arthropoda‚ Phylum Echinodermata‚ Subphylum Cephalochordata and Subphylum Vertebrata (Fishes). Phylum Porifera The characteristic of members of Phylum porifera include asymmetrical or radial symmetry body plan. There are three types of cells which is pinacocytes‚ mesenchyme
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that there are two lineages of sponges‚ one more closely related to other more complex Metazoans than the other. People often think of sponges as plants‚ rather than being animals. This misconception is due to some of the characteristics of the Porifera (Dawkins 2004). Like plants they do not move‚ i.e.‚ they are sessile. They stay put in one place stuck to the bottom of the water- either salt or fresh. Also‚ they don’t have muscles. Like plants they move at the cellular level (Dawkins 2004)
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I N V E R T E B R A T E S | Biology Folio | By: Siti Nur E’zzati Zaidi & Nur Aida Amira (S3K2P6[B]) [Pick the date] | Practical Class Lecturer: Pn Suria Tutorial Class Lecturer: Miss Lock Shu Ping Table of contents Phylum Porifera…………………………………………………..3 Phylum Coelentrata…………………………………………….4 Phylum Platyhelminthes……………………………………..5 Phylum Nematoda………………………………………………6 Phylum Annelida………………………………………………….7 Phylum Mollusca…………………………………………………..8 Phylum Arthropoda……………………………………………
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sponge‚ you may be thinking of... -Spongebob Squarepants -Or maybe even a synthetic cleaning sponge. But those are not the sponges I am talking about. -Sponges are simple‚ multicellular but beautiful filter-feeding animals. They are from the phylum porifera and are invertebrates that live in the bottom of the ocean and cannot move from their surface. -Sponges are also ancient creatures. 3.5 billion years ago‚ when the earth was a cold‚ empty and dark place‚ the first form of life appeared in the ocean-
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