particularly water contaminated by pathogens originating from excreta. These include typhoid‚ intestinal parasites‚ and most of the enteric and diarrheal diseases caused by bacteria‚ parasites‚ and viruses. Among the most serious parasitic diseases are amoebiasis‚ giardiasis‚ ascariasis‚ and hookworm. Also‚ ways of conserving water such as collecting rain water and using it in watering the garden and washing the car were neglected. These could have lower the demands of water supplies used in cleaning and
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A Survey of Eukaryotic Cells and Microorganisms HISTORY OF EUKARYOTES: 1. Evidence indicates that the first Eukaryotic cells first appeared on the earth approximately 2 billion years ago. Fossilized cells appear in shale sediments from China‚ Russia and Australia the date from 850-950 million years ago. 2. Biologists have discovered evidence to suggest that the eukaryotic cell evolved from prokaryotic organisms by a process of intracellular symbiosis. 3. Some of the organelles that
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| |E. gingivalis |E. coli |E. nana |I. buetschlii |E histolytica | |Other names |A. gingivalis‚ A. / E. |A. coli‚ Endamoeba homini‚ |Entamoeba nana‚ E. |Iodine Cyst of Wenyon‚ |A. coli / dysenteriae‚ | | |buccalis |Loschia coli‚ Councilmania |intestinalis |Entamoeba williamsi/ |Entamoeba dysenteriae /
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The Hazardous Effects of Pollution to the Environment and Human Health Abstract Pollution is the introduction of contaminants into the natural environment that causes adverse change. It can take the form of chemical substances or energy. Pollutants‚ the components of pollution‚ can be either foreign substances/energies or naturally occurring contaminants. It is any discharge of material or energy into water‚ land‚ or air that causes or may cause acute (short-term) or chronic (long-term) detriment
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Raudah P. Mangbisa Grade VIII-Nilo VIRUS A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms‚ from animals and plants to bacteria and archaea. Characteristics: Like living organisms‚ viruses contain nucleic acids and proteins. Inside living cells‚ viruses can reproduce‚ but not by the process of mitosis like most living cells. Viruses lack some characteristics of living organisms. Outside of living cells‚ viruses are
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Introduction Health is a positive state of well being‚ where every part of the body and mind is in harmony and in proper functioning balance with every other part. In other words‚ when every organ of the body is functioning normally‚ the state of physical well being is known as health. It has been well said that only that person can be called really healthy who has a sound mind in a sound body. Health is the characteristic of life that enables a person to live longer. According to World Health Organisation
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(diagnosis): * SS. – strongyloides stercoralis * HK. – hook worm Elephantiasis – blood nematode Filarial Worms – blood tissue worm Capillaria Filipinensis * Native parasite * Causes severe diarrhea Amoeba Histolytica * Causes amoebiasis TREMATODES * Hermaphrodites * Both male and female organs are in adult form NEMATODES * Ascaris * Trichuris * Enterobius Ascaris lumbricoides COMMON NAME: Giant Intestinal Roundworm HABITAT: duodenum / small intestine
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Chapter 1 INTRODUCTION Background of the Study Rivers are the bodies of water bearing an immense biological importance. Though they contain only about 0.0001% of the total amount of water in the world at any given time‚ rivers are vital carriers of water and nutrients to areas all around the earth‚ they are essential components of the hydrological cycle‚ for they act as drainage channels for surface water and they serve as habitat for various organisms (Hebert‚ 2011). With rapid increase
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An Epidemiological approach in partial fulfillment of the requirement of the award of OD (Doctor of Optometry). By Nwogwugwu Chioma Peace Mat. No.: 04/8131 Department of Optometry‚ Imo state University‚ Owerri. Supervised by: Dr. Onome Okereke December‚ 2009 Table Of content Page 1.0 Introduction 3 2.0 About The study 4 3.0 The Owerri municipal waste dumping site 6 4.0 Environmental pollution and impact of exposure 7 5.0 The study findings 9 6.0 Conclusion
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nutrients into the cell by diffusion and packaging it into (clear circles spread throughout the cell) c. pseudopod- “false foot”; the motility results from the streaming of the protoplasm that forms the process 2. Entamoeba causes amoebiasis or amoebic dysentery‚ a disease common in areas with poor sanitation. Cysts are ingested in contaminated food and water and develop into trophozoites‚ which invade the mucosa of the large intestines producingulcers accompanied by dysentery. Trophozoites
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