are in the phylum Platyhelminthes (which means “flat worm”)‚ which contains about 25‚000 species‚ most of which are in the tapeworm and fluke groups. These are parasitic‚ living in other organisms where they can cause serious disease such as schistosomiasis (See Sadava‚ Fig. 31.15‚ and pp 695-696). Other flat worms are native to salt water‚ fresh water‚ or moist soil. Platyhelminthes are the simplest bilaterally symmetric and triploblastic animals (meaning they have all three primary germ layers:
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Throughout the past years‚ there has been many potent discoveries‚ people all around the world find and they use these findings to add on to prior knowledge. In addition‚ these new observation and ideas that are introduced to society allows‚ humans to revolutionize and expand society as a whole. In addition‚ the answer to many issues humans suffer from in modern society‚ can be solved by understanding the origin of the problem‚ hence be able to further their investigation for a solution. To begin
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“Should IVF be available to all people who apply for this form of reproductive technology?” In vitro fertilisation (IVF) is the process of fertilizing eggs with sperm outside of the human body. Once fertilised‚ the resulting embryos are placed back in the woman’s uterus in the hope that a successful pregnancy will follow. In vitro fertilization (IVF) usually is used only by couples who have trouble getting pregnant without intervention. But many homosexual couples are starting to use this method
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Asia Roberts Swofford ENGLISH 1312 (08) February 26‚ 2013 Water and Sanitation The cleanliness of water has always been looked at as an issue that needed to be dealt with. When looking around at articles and papers there are always the ones over the sanitation of water in third world countries and how help is needed there. DALY (disability adjusted life years) is used to measure disease resulting from poor access to water and sanitation facilities. The absence of access to clean water and sanitation
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CHAPTER 1 THE PROBLEM AND ITS SETTING Introduction Sanitation is the science and practice of effecting healthful and hygienic conditions. “Sanitation generally refers to the provision of facilities and services for the safe disposal of human urine and feces.” (WHO‚ 2008). Proper sanitation greatly helps in achieving optimal health of individual. It is very important to dispose excreta safely. Personal hygiene and hand washing is greatly encourage after defecating‚ before and after eating
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Unit 265 Causes and spread of infection. Outcome 1 Understand the causes of infection 1. Identify the difference between bacteria‚ viruses‚ fungi and parasites? The difference between bacteria‚ viruses‚ fungi and parasites is: Bacteria Bacteria is a single celled organism‚ bacteria have evolved to thrive in almost any environment and can be found in almost any substance/surface and also in the human body‚ only 1% of bacteria is actually harmful. It ’s bad or infectious bacteria that cause illness
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plague: YERSINIA PESTIS Diphtheria: KLEBS LOEFFLER Pertussis: BORDETELLA PERTUSSIS Tuberculosis: MYCOBACTERIUM TUBERCULOSIS Typhoid: SALMONELLA TYPHI Cholera: VIBRIO CHOLERA Amoebiasis: ENTAMOEBA HYSTOLITICA Leptospirosis: LEPTOSPIRA Spirochete Schistosomiasis: Schistosoma japonicum Gonorrhea: N. GONORRHEAE Syphilis: TREPONEMA PALLIDUM Chlamydia: C. trachomatis‚ T. vaginalis Genital herpes: HERPES
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political institutions. © 2000 The Regents of the University of California. Published by Elsevier Science Ltd. All rights reserved. Keywords: China; Dams; Emerging infections; Parasitic diseases; Property rights; Public health; Resettlement; Schistosomiasis;
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Kara Acosta Aimie Pham Harding ENGL 1312 - 34 26 April 2013 Water Pollution: Pollutants & Solutions Imagine swimming out of a narrow cavern following a scrumptious meal‚ and you come to realize it was poisonous. You begin to drown as your life slowly fades right before your very eyes; this is not a frightening hallucination. Everyday‚ schools of fish are unaware that their meals are products of millions of tiny pieces of garbage‚ assimilated. This is one of the many consequences of water
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boy tells Dettwyler that his red urine was‚ “part of growing up”(Dettwyler 1994:46). She later realized that many cultures believe that the red urine is a sign of being sexually mature and when in reality this was an example of a person with schistosomiasis. This disease is caused by parasites that burrow through the skin ending up in the urinary tract and can be fatal. My
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