PLATYHELMINTHES About Platyhelminthes Platyhelminthes are an ancient phylum and there is little information into how it evolved. Their evolutionary history remains unknown because soft-bodied organisms do not fossilize well. Scientists believe that the first flatworm began to evolve 550 years ago. Platyhelminthes otherwise known as “flatworms” have a wide variety of species within the phylum and have positive and negative effects on those who interact with them. Some examples of Platyhelminthes
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humans as parasitic and cause serious problems ‚ which are flatworms. However‚ nematoda live in nearly all habitats from poles to tropics. There are four major classes of flatworms such as Cestoda known as tapeworms‚ Turbellaria are planarians‚ Trematoda are flukes and Monogenea
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I. Platyhelmithes Kayla Smith A. Structure and Function of Flatworms Period 2 1. Flatworms are the simplest animals with bilateral symmetry. 2. The tissues in bilaterally symmetrical animals develop from three germ layers: Ectoderm‚ Mesoderm‚ and Endoderm. 3. In flatworms‚ the layers are pressed against one another to form a solid body. 4. Because flatworms do not have a hollow body cavity between the endoderm and mesoderm‚ they
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1. Anatomi dan Fisiologi Sistem Pencernaan Sistem pencernaan adalah sistem organ yang menerima makanan‚ mencerna‚ dan mengeluarkan sisa makanan dari proses pencernaan tersebut. Fungsi utama sistem pencernaan ini adalah untuk mengabsorpsi makanan‚ menyediakan zat nutrien yang sudah dicerna secara kompleks menjadi molekul sederhana‚ untuk di distribusikan ke dalam sel melalui sirkulasi dengan unsur-unsur (air‚ elektrolit‚ dan zat gizi) dan menyekresi sisa makanan. Sistem pencernaan manusia diawali
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ANIMAL DIVERSITY Systematics • study of biological diversity and its origins Its arms TAXONOMY focus on properly describing‚ identifying‚ classifying‚ and naming of organisms. CLASSIFICATION focus on placing organisms within groups that show their relationships to other organisms. Writing a scientific name. • Kimberlicus beltranus • Kimberlicus beltranus The Protozoans Protozoa Alveolates Ciliates Sporozoans Dinozoans Amoeboids Amoebozoa Cercozoa
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Biology Animal Phylums "Write a three sentence description for each phylum and list two examples for each. Also‚ draw a picture of a common example from each. (or cut out of a magazine). You will be graded on how accurate your information is as well as neatness." Sponges (Porifera): Poriferans don’t have mouths; instead‚ they have tiny pores in their outer walls through which water is drawn. Cells in the sponge walls filter nutrients from the water as the water is carried through the body
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Chapter 32/33: Invertebrates Name _______________________ Period ___________ Date ____________________ NONCOELOMATE INVERTEBRATES (CH 32) Sponges are basal animals that lack true tissues 1. Sponges are in the phylum Porifera. This group is now known to be polyphyletic‚ and all sponges belong to either phylum Calcarea or phylum Silicea. They are the simplest animals and lack true tissues. Label the following: pores‚ spongocoel‚ epidermis‚ amoebocytes‚ choanocyte‚ flagellum‚ spicules
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__________ cells completely fills the area between the outer epidermis and digestive tract. a) parenchymal c) nervous b) muscular d) ectodermal 4) Which of the following classes is typically not parasitic? a) Turbellaria c) Trematoda b) Monogenea d) Cestoidea 5)
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01/28 Domain: Eukarya “Eu karyotic Protist Supergroups” 1. Supergroup Excavata Genus – Euglena Tryponsoma 2. Super group Chromolaveolata a. Ceratium b. Plasmodium c. Paramecium d. Laminaraia 3. Super group Archaeplastida a. Red Algae “ Polysiphonia” b. Green Algae “Chlamydomadas‚ Hydrodictyon‚ Spirogyra‚ Volvox” 4. Unikonta a. Amoeba b. Some other small creatures that have flagella Pro – No membrane‚ No Histone‚ They have a cell wall‚ unicellular Super groups in Eukarya domain:
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implications of ribosomal DNA sequencing for the discrimination of digenean species.AdvParasitol 60‚101–163. Olson‚ P.D.‚ Cribb‚ T.H.‚ Tkach‚ V.V.‚ Bray‚ R.A.‚ Littlewood‚ D.T.J.‚ 2003. Phylogeny and classification of the Digenea (Platyhelminthes: Trematoda).Int. J. Parasitol. 33‚ 733–755. Phiri A.M‚ Chota A‚ Phiri I.K.‚ 2007. Seasonal pattern of bovine amphistomosis in traditionally reared cattle in the Kafue and Zambezi catchment areas of Zambia. Trop Anim Health Prod 39‚97–102. Rangel R L.J.‚Brahms
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