The causes of infection. Diseases can be classified as genetic‚ metabolic‚ or infectious. Infectious diseases are caused by bacteria‚ viruses‚ fungi and parasites that use our body as a host for reproduction and cause illness. Bacteria‚ viruses‚ fungi and parasites. These are all microorganisms which cause infection‚ yet they are all different in structure‚ required environment and conditions needed to thrive and multiply. Bacteria is a single celled organism. It’s shape and size can vary
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toxoplasmosis is a protozoan parasite first discovered in 1908 and named a year later. Its medical importance remained unknown until 1939 when Toxoplasma gondii was identified in tissues of a congenitally infected infant‚ and veterinary importance became known when it was found to cause abortions in sheep in 1957. The discovery of Sabin-Feldman dye test‚ a toxoplasma gondii specific antibody test‚ in 1948 led to the recognition that Toxoplasma gondii is a common parasite of warm-blooded hosts with
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Understanding the Causes of Infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites. Bacteria are a living cell organism that can survive inside our body and other non living objects as well. There are both good and bad bacteria’s and the good bacteria is known to helps fight against the bad bacteria that makes its way into our bodies. According to www.righthealth.com‚ less than 1% of bacteria are actually harmful to us. In fact‚ we couldn’t survive without
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birds and mammals c. Malaria; air conditioning d. Fauvism; fava beans 15. Explain the following statement found on page 87: “Life is such a compromise.” Chapter V: “Of Microbes and Men” 16. Complete Parasite Chart (go to end of assignment) 17. Identify 3 ways in which microbes/parasites move from host to host. 18. For each pathway listed in question #2‚ explain the relationship of the
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While sitting outside on a sunny day‚ I saw bees flying around me. I quickly got up and started to walk away. I was a little angry they had ruined my peacefulness. I muttered to myself “I wish bees would die.” A few months later in my biology class‚ we had to read an article about Honeybees and how they pollinate. I was very interested in how these insects contribute to our world. In the article‚ it also mentioned about the bees vanishing. I instantly desired to get this important information out
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html bird species -- it’s a very attractive parasite. http://www.care2.com/causes/why-is-a-deadly-cat-parasite-attacking-arctic-belugas.html And according to a new study published in Biodiversity Data Journal‚ the Shiny Cowbird is wreaking havoc on Ecuador’s native -- and sometimes endangered -- bird species. http://www.care2.com/causes/ecuador-ditches-plan-to-protect-amazon-from-oil-drilling.html
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276-277 Green RF‚ Noakes DLG (1995) “Is a little bit of sex as good as a lot?” Journal of Theoretical Biology 174 (1)‚ pp. 87 Hörandl E (2009)‚ “A combinational theory for maintenance of sex”. Heredity 103 (6)‚ pp. 445-450‚ 453-455 Lively CM (2010) “Parasite virulence‚ host life history‚ and the costs and benefits of sex”. Ecology 91 (1)‚ pp.3 -6 Mittwoch U (1978)‚ "Parthenogenesis". Journal of Medical Genetics 15‚ pp. 165-181 Morran LT‚ Parmenter MD‚ Phillips PC (2009) “Mutation load and rapid adaptation
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disease. Another type of biological hazard is malaria which comes from mosquitoes spreading the disease. The disease is caused by a mosquito biting a person‚ in which the parasites are released‚ destroying the cells (Wright & Boorse‚ 2011). These parasites becomes hidden from the immune system‚ therefore‚ preventing the parasites from being detected to help fight off the infection. Physical hazards include any type of natural disasters. These hazards can include a tsunami‚ tornadoes‚ earthquakes
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Westneat 1995; Hulsey and Wainwright 2002; Bshary 2003; Wainwright et al. 2004). All various species within the Labridae family vary in their food preferences and specializations. Prey includes coral‚ shrimp‚ fish‚ hard-bodied prey‚ soft-bodied prey‚ parasites‚ and algae. The highly specialized nature of the feeding behavior of the wrasses is responsible for their occupation of very narrow ecological niches. In particular‚ we observed the genus Halichoeres in Belize‚ which includes the Yellowhead Wrasse
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CU254 1.1‚ 1.2. Bacteria Bacteria are single-cell organisms‚ they are living things that belong to a group of their own‚ and therefore they are not classed as animals or plants. They are usually only a few mm in length‚ can be spherical‚ rod or spiral shaped‚ contain a cell wall and normally exist together in millions. Bacteria can only reproduce asexually and does not contain a nucleus. Bacteria can be beneficial‚ but it can also be pathogenic (cause disease in humans). Examples of diseases
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