Are genetically modified foods beneficial? Frederick J Cole Genetically modified foods are produced from plants which have had their genetic make-up ‘tweaked’ in the lab. Scientists “cut and paste” a gene from another organism into a plant’s DNA to give it a new characteristic. I have always been interested in Biology and I have heard a lot of bad things about GM food‚ but I have always wondered if there are any benefits‚ so this is what I would like to research. Firstly‚ I would like to look at
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CHEMICAL PARAMETERS OF FRESHWATERS Objectives At the end of this section‚ students should be able to 1. Distinguish between freshwaters and seawater in terms of ionic composition. 2. Describe the variation of ionic composition in natural freshwaters and other inland waters. 3. Explain the factors that contribute to such variation. 4. Describe Gibbs’ model that explains the major factors contributing to variation in chemical composition of inland waters. 5. Explain
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Laundry detergents are found in every household and used for removing stains and oils from clothes so they could be reused. The production of this invention first started in the United States in the 1930s but started becoming very popular only after the Second World War because the military required a chemical to remove the dirt and oil off their military outfits (Clean Living). Laundry detergents have a combination of chemicals which combat different barriers to clean the fabric. They have different
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Bacteria Prokaryotic & Eukaryotic Cells 1-7.Bacteria cells reproduce ASEXUALLY BY BINARY FISSION. Asexually means the offspring comes from one parent Draw what Binary Fission of a bacteria looks like: 8. Label the parts of this prokaryotic cell. [pic] 9. Name several structures that are found in eukaryotic‚ but NOT prokaryotic cells. 10. What type of cells are the most numerous on Earth? 11. What are the most common type of prokaryotic cells? 12. How old are the earliest
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Hussain Sagar Information Max. length 3.2 km (2.0 mi) Max. width 2.8 km (1.7 mi) Surface area 4.4 km2 (2 sq mi) Max. depth 32 ft Surface elevation 1‚759 ft Islands Buddha Statue (artificial) Built by Hazrat Hussain Shah Wali in 1562‚ during the rule ofIbrahim Quli Qutb Shah. It was 5.7 square kilometres built on a tributary of the River Musi to meet the water and irrigation needs of the city. At the end of the Hussain Sagar one can find the Masjid and Dargah of Sayedani Maa Tomb – a heritage site
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to clean up from the environment once it gets into it because it is non-biodegradable. Beside‚ nitrates and phosphates are also the poisonous. There are found in fertilizers‚ are often washed from the soil to nearby water bodies. They can cause eutrophication‚ which can be very problematic to marine environment. Lastly‚ oil forms a thick layer on the water surface because it does not dissolve in water. This can stop marine plants receiving enough light for photosynthesis. It’s also harmful for fish
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Environmental Management -Sulfates Suffery or rotten egg smell high levels- over 500 mgll‚ temporary diarrhea -Nitrogen Nitrates - blue baby syndrome Limit-10mg/l -Eutrophication Too many nutrients. Too much algae Leads to oxygen drops Fish kills -Phosphorus Causes eutrophication From agricultural runoff - detergents Removal may cause rise in sewerbills -Toxins Lead‚ arsenic‚ some solvents‚ Pesticides Mutagens- can cause mutations in DNA Carcinogens- cause cancer (in peanut butter)
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Tourism is an activity done by an individual or a group of individuals‚ which leads to a motion from a place to another. From a country to another for performing a specific task or it is a visit to a place or several places in the purpose of entertaining which leads to an awareness of other civilizations and cultures‚ also increasing the knowledge of countries‚ cultures‚ and history (Central Department of Tourism & Summer Resorts 2006). Tourism is an important industry that depends on culture and
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and survive." Also‚ acid rain affects the ability of plants like trees to grow and resist disease ("Air Pollution‚" Internet). Other adverse effects of air pollution include smog‚ generated by automobiles and other fossil-fuel burning vehicles‚ eutrophication‚ based on "excess nitrogen which causes the accelerated growth of algae‚ bioaccumulation‚ or an increase in chemical contaminants in the food chain which can often "change a plant species composition and make species more susceptible to disease
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Case Study Luke Tudor 09 Dec 2009 Microbiology‚ Vectors and Control DMS1515 Concerns have been raised about the safety of drinking water being provided for a large temporary community. The area is remote‚ rural‚ without proper sanitation and there are limited multipurpose water resources How could you ascertain the safety of the water? Potable water is fit for consumption by humans and other animals. Water may be naturally potable‚ as is the case with pristine
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