Purpose: The purpose of doing this lab was to observe the regenerative patterns of planaria cells after a portion of their bodies was cut off. Background: 1. A blastema is a group of cells that forms at the site of a wound that eventually turns into the missing parts of a planaria. 2. Planaria fission occurs when a planaria is missing body parts. The organism attaches its tail-end to the ground and pulls itself forward using its head-end in order to tear itself into two parts. Then‚ each of these
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INTRODUCTION TO SCIENTIFIC TERMINOLOGY The purpose of this document is to introduce root words and their definitions. These words play a vital role in Biology because many scientific terms are based on these words. Because these root words are Greek or Latin in origin‚ their meanings have remained consistent throughout time. By becoming familiar with root words and their definitions you can determine general meanings of many terms by simply applying these root word definitions. For example‚ the
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HUMAN PARASITOLOGY EXAM 1 QUESTIONS 1) INTRO AND HOST PARASITE INTERACTIONS 1. What is a symbiosis? What is each participant in a symbiotic relationship called? What is a trophic interaction? Give some examples. 2. What type of dependency exists between the participants of a phoretic relationship? Does the phoront benefit from the relationship? 3. Explain commensalism. How does the commensal benefit? Can these organisms survive independently? 4. What is mutualism? Can these
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Wastewater Wastewater is any water that has been adversely affected in quality by anthropogenic influence. It comprises liquid waste discharged by domestic residences‚ commercial properties‚ industry‚ and/or agriculture and can encompass a wide range of potential contaminants and concentrations. In the most common usage‚ it refers to the municipal wastewater that contains a broad spectrum of contaminants resulting from the mixing of wastewaters from different sources. Sewage is correctly the
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Leishmania. (c) Porifera: Skeleton‚ canal system and reproduction. (d) Cnidaria: Polymorphism‚ defensive structures and their mechanism; coral reefs and their formation; metagenesis; general features and life history of Obelia and Aurelia. (e) Platyhelminthes: Parasitic adaptation; general features and life history of Fasciola and Taenia and their pathogenic symptoms. (f) Nemathelminthes: General features‚ life history‚ parasitic adaptation of Ascaris and Wuchereria. (g) Annelida: Coelom and metamerism;
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Cysticercosis is a disease caused by ingestion of the eggs of Taenia solium. Neurocysticercosis occurs when the tapeworm parasite infests the central nervous system (CNS). This infection is becoming increasingly common in places such as‚ Latin America‚ Central America‚ and Southeast Asia. Immigration has increased the area of infection and stopped the confinement to certain geographical areas. These infections occur via fecal-oral route and can come from fresh produce. Most of the infections can
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Day 1: Biology of Animals Deuterostomes develop anus from blastopore Protostomes develop mouth from blastopore. Presentation: Overview of Prokaryotes‚ Protists‚ and Fungi I. Prokaryotes (ex. Bacteria) Characteristics -Unicellular -Small (0.5-5um) -Know shapes (ex. Spherical rod shaped and spiral) cocci‚ spirilla‚ bacilli -Cell wall‚ salt‚ peptidoglycan‚ Gram stain‚ virulence. Gram positive bacteria take up the Gram stain and turn purple‚ peptidoglycan traps crystal violet‚ very
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as pellets or paste o Examples of organisms excreting uric acid: birds‚ reptiles‚ land snails and insects o Such organisms are called uricotelic. Excretory Organs in Animal Kingdom • Protonephridia (flame cells): Excretory structures in platyhelminthes and some cephalochordates like Amphioxus • Nephridia: In earthworms and other annelids • Malpighian tubules:In insects‚ including cockroach • Antennal glands(Green Glands): In crustaceans (prawns) • Vertebrates and some molluscs have kidneys
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Academic Council 25/05/2011 Item No. 4.59 UNIVERSITY OF MUMBAI Syllabus for the F.Y.B.Sc. Program: B.Sc. Course : Zoology (Credit Based Semester and Grading System with effect from the academic year 2011–2012) 1 F.Y.B.Sc. Zoology Syllabus Restructured for Credit Based and Grading System To be implemented from the Academic year 2010-2011 SEMESTER I Course Code UNIT I USZO101 II III I USZO102 II III USZO P1 TOPICS Diversity of Animal Kingdom I Life processes I Ecology Molecular basis of life
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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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