Process of Diffusion and its importance in living organisms Diffusion is the movement of molecules or ions down a concentration gradient i.e. from an area of high concentration to an area of low concentration. For a diffusion system to be efficient‚ it should have a large surface area so that high amount of substances can be exchanged at a time. It should also have a thin membrane and a continuous supply of substances‚ as a thin membrane means that the diffusion pathway would be short‚ and the continuous
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Are GMO’s the Future of Food? To some‚ “Genetically Modified” is synonymous with “dangerous” and “unnatural” to others Genetically Modified Organisms can mean the difference between eating or starving‚ and can mean saving thousands of dollars in crop losses. GMO’s can help farmers grow more food on less land and can help farmers in the developing world grow a sustenance crop to support and feed their families. Those who view GMO’s as a danger to themselves and their children usually don’t fully
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Effect of ions on living organisms (24 marks) An ion is a charged atom or molecule. This is because it does not have an equal amount of protons and electrons‚ therefore giving the atom an overall charge. An example of an ion is ‚ this is sodium and the plus sign represents an overall positive charge. Ions are very important to living organisms as they are essential for life‚ they play an important role within the cell allowing mechanisms within the living organisms such as respiration‚ to take
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The Process of Osmosis and its Importance to Living Organisms. Osmosis is the diffusion of water through a semipermeable membrane that does not allow dissolved solids (solutes) to pass. Osmosis refers only to diffusion of water and the direction of movement is from the area of higher concentration to the area of lower concentration. This migration of water from a region of higher concentration to a region of lower concentration is spontaneous and although water molecules move in both directions
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Ng Boon Yee/ Group B06/ A0099215Y Comparison of Organisms from the Class Oligochaeta and Class Chilopoda Animal phylogeny is an interesting and rapidly changing field of study. To date‚ there are about 1.5 to 1.8 million species of animals that have been named and described by biologist with 15‚000 to 20‚000 new species named each year. However‚ millions more species are yet to be discovered and classified. Taxonomists have divided the animal kingdom into about 35 phyla (Solomon et al.‚ 2011). Out
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1.6.1 Anatomy and Physiology Venn Diagram uyhgtyggggt7gtygygtygtygtyghtygtgtygtygttygtygtygtygtygtygtggtgtg6gt6gt6gt6gt6ggt6gtgtgt6gt6gt6gt6gt6gt6gt6gt6gt6gt6g6tgt6gt6gt6g6tgt6gt6gt6ggt6gt6gt6gt6gt6vgt6gt6gt6gt6gt6gt6gt6gt6gt6gt6gt6gt6gt6gtgt6gt6gt6gt6gt6gt6gt6gt6gt6g67tgt6gt6gt6gt6gt6gt6gt6gt6gn gjlerhnsdkfjklsdjfkljdsklfjkkldjfkjdklfjdkljfkldjfkldjklsjLE- M STATEMENT Acute musculoskeletal injuries are typically managed using the combination of ice‚ compression‚ and elevation. There is reasonable
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Examples of Genetically Modified Organisms (GMO)e’ Many of our common crops‚ such as corn‚ canola‚ potatoes‚ tomatoes‚ squash‚ and soybeans‚ are genetically modified. The majority of these crops were herbicide-resistant as well as insect-resistant‚ while the others may contain increased nutrients such as vitamins‚ produce yield earlier‚ or are able to survive weather extremes. Genetically modified tomatoes were introduced to the market in 1994‚ becoming the first commercially grown transgenic crop
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Programme Edexcel BTEC Levels 4 and 5 Higher Nationals in Health and Social Care Unit Title: Physiological Principles for Health and Social Care Unit : 12 Date Issued: 20 January 2014 Student Name St Patrick Student ID No.: Date of final Submission: TBA Edexcel Registration No.: Unit Leader: Mr. Mihir Parker Internal Verifier Name: Mr Hasa Ram
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Follow These 5 Steps To draw a Lewis dot structure for a molecule or ion‚ follow these steps: •Step 1: Count up the number of valence electrons for each atom‚ and total them up to give the total number of electrons for the molecule. If the molecule is an ion‚ include that charge in the count. For example‚ for a +1 ion‚ subtract one electron‚ and for a -2 ion add two electrons to the total count. (For more information about how to count the number of valence electrons per atom‚ see the related
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Elijah A. Ruffin Research Paper Since the creation of Genetically Modified Foods in the 1950s‚ there has been increasing controversy over scientific‚ environmental‚ social‚ and the ethical issues surrounding them. The history of Genetically Modified foods shows that the initial purpose was to extend shelf life‚ improve flavor‚ and increase resiliency against degradation and rotting. According to Margaret McLean‚ a profound researcher of GMO’s‚ the first products to be genetically modified were
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