taken‚ rotate the 10x objective away from the specimen and the 40x over it. Use the fine adjustment knob to bring the specimen back into focus. 5. Repeat the above steps for 6 more specimens. Those viewed and micrographed in this lab are: Amoeba Anabaena Ascaris eggs Paramecium Yeast Penicillium Part 2 of Exercise 1: 1. View 6 more prepared slides by using the oil immersion lens. Follow steps 1-5 above to locate‚ center‚ and focus each slide at 10x and 40x
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Causes and spread of infection Identify the differences between bacteria‚ viruses‚ fungi‚ parasites? -Viruses aren’t living. They’re only made of complex proteins and nucleic acids. Bacteria‚ Fungi and Parasites are living organisms. - Bacteria are unicellular microorganisms. Fungi and Parasites are multicellular. - Fungi have cell walls made of chitin and they aren’t animals. Parasites and bacteria are animals. Bacteria come in 3 main shapes; spherical which are known as cocci‚ rod shaped
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relationship imaginable (Dietl and Kelley‚ 2002). One of the most intriguing and commonly studied relationships is that of predator and prey. The predator-prey relationship can manifest itself in many forms‚ be it two animals‚ an insect and a plant or a parasite and its host (Dietl and Kelley‚ 2002). Predators evolve different offensive mechanisms such as speed‚ large canines and claws‚ or resistances to toxins‚ while prey develop defensive mechanisms such as camouflage‚ bright colours‚ toxins‚ burrowing
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Crypto‚ also referred to as cryptosporidiosis and cryptosporidium‚ is a waterborne disease. It brings sickness to the host with tiny cryptosporidium parasites. After the parasites enter the body‚ it continues by penetrating the small intestines. Its symptoms usually begin within a week of infection. These symptoms include fever‚ dehydration‚ weight and appetite loss‚ stomach cramps‚ vomiting‚ and watery diarrhea. For people with healthy immune systems‚ symptoms commonly last around one to two weeks
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It is very plausible that hatcheries could help repopulate and help bring the number of wild salmon back up to where it used to be but‚ this same thought to be helpful action‚ might actually harm the species altogether instead. Some people might believe that if the situation at hand is too little of a population‚ then why not hatch more? The reason is told between the connection of the elements of the complete salmon system itself. Are hatchery fish helping us replentish the reduced salmon stock
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seemed to first be described by Toxoplasmosis is caused by a parasite called Toxoplasma gondii. Toxoplasma gondii has two types of hosts‚ a definitive and an intermediate. Cats are the only definitive hosts for Toxoplasma gondii meaning that only when the parasite infects the cat will it produce oocysts (eggs). Toxoplasma gondii will not produce eggs in other warm-blooded animals. When the cat digests food that contains this parasite‚ the Toxoplasma gondii inside of the cat will be released into
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the most basic necessities a person needs to live is water‚ which can often be contaminated by the larvae of the parasite Dracunculiasis‚ also known as Guinea worm. Although African citizens may be aware of the poor prognosis when infected with Dracunculiasis‚ they are typically unaware of the parasites’ strength. I intend to analyze the location and conditions in which the parasite is most likely to infect a host and how it affects the body. I will also discuss what types of treatments are available
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Reproduced from: Schmid-Hempel‚ P. (2008). Parasite immune evasion: a momentous molecular war. Trends in Ecology & Evolution 2008; 23: 318-26. Dance of the Sugar Plum Fairy – Antigenic Variation in African Trypanosomes Trypanosoma brucei (T. brucei) is a protozoan parasite transmitted by the biting tsetse flies from to the genus Glossina‚ primarily known for infecting mammals in sub-Saharan African region (Mugnier et al.‚ 2016). Two subspecies of the parasite – namely T. brucei gambiense and T. brucei
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§Move air to and from exchange surfaces §Protect exchange surfaces from environmental variations and pathogens §Produce sound §Detect olfactory stimuli Types of respiratory organ §1. Aquatic respiration §A. cell membrane – amoeba‚ paramecium §C. gills – mollusks and arthropods §1. papulae – finger-like dermal branchiae §Eg. Starfish §2. gills exposed to the water §Absence of operculum §Shark‚ salamander larvae and tadpoles §3. gills covered with operculum
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Cryptosporidium parvum: Transmission and Infection Cryptosporidium parvum is a protozoan intestinal parasite causing a short-term enteric illness in individuals with functioning immune systems‚ and can cause a potentially fatal infection in immunosuppressed individuals. Because of C. parvum ’s resistance to many of the procedures used to process drinking water and food‚ and the parasite ’s extremely high fecundity‚ the potential for a large scale outbreak is very high. In fact‚ C. parvum was
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