Hypothesis: I predict that the leaves taken from the outer area of a shrub have a higher stomatal index (/density) than those taken from the centre of a shrub this are due to light levels. Explanation: Plants have stomata to obtain carbon dioxide from the atmosphere and remove oxygen produced in photosynthesis. During photosynthesis the chloroplasts in the leaf cells synthesize as a result of exposure to light‚ while oxygen is produced as a by-product. As the outer leafs are exposed to higher light
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Genetic Traits Exercise: Introduction: The pioneer of modern day genetics was an Austrian Monk named Gregor Mendel‚ who established the basic laws of heredity from his studies with pea plants in the late 1800s. Mendel’s fundamental genetic principles may be applied to a variety of traits from many different organisms. Each genetic trait‚ such as flower color‚ is regulated by a pair of genes called alleles. These alleles are found at particular places on the chromosomes called loci. During meiosis
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Unit 5 Case Study Mariella Hines is a 9 year-old African-American girl attending the 3rd grade in the JFK School. She was referred to the School Psychologist because she has recently become very withdrawn during class‚ refusing to speak to anyone‚ including her teacher and peers. Previously she seemed to have age-appropriate social skills‚ interacting well at school. Her withdrawal started suddenly. Mariella’s teacher‚ Mrs. Levine‚ called Mariella’s mother to find out more information‚ but her
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Study Questions: Chapter 28 1.) Archaea and Bacteria are the oldest‚ structurally simplest and most abundant forms of life. 2.) Name and describe seven ways in which prokaryotes differ substantially from eukaryotes? Unicellularity- fundamentally single-celled Cell Size- can vary (large range changes with species) Nucleoid- lack a membrane-bound nucleus but rather a nucleoid region Cell Division/Genetic Recombination- binary fission (does not use spindle) and do not have a sexual cycle Internal
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Communication Studies SBA Journal SBA Theme: Communication: Advancement Through Technology (To be reconsidered) Name: Melvin Martial In this journal exact dates are not included as during some writing sessions the dates were not recorded as a result of error of format. Entry 1: Introduction (No. 1) Over the years technology has become more and more advanced. As a result of this rapid pace of evolution consequently this was used to further communication tools. Who would have ever imagined that we
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THE Economic Crisis IMPACT ON THE CARIBBEAN Economic Crisis?In any complex system‚ a crisis is a period of where the system functions very poorly‚ warranting immediate corrective action. In an economy therefore‚ a crisis can be described as that period of dismal economic performance. During this time‚ the value of institutions‚ especially financial institutions‚ drops at unprecedented speeds and everything seems to be valueless. Production is low and often fails to meet the level of demand.
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children 14 years and under‚ as well as‚ 75% of people 25 and under‚ have shown some sign of a mental illness‚ yet around 85% of those people go undiagnosed and untreated. This is true in developing and developed countries. Many cultures‚ such as Caribbean‚ African‚ and other extremely religious societies stigmatize mental illnesses. They confuse it with being possessed‚ or the person’s choice. They believe that prayer will surpass any medicine. This may be true in some cases‚ but on the basis
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T Case Summary of: Carribean Internet Café 1. What managerial issues should David consider before starting Caribbean Internet Café? Managerial Issues: Broadly defined as all issues which have an impact on a business manager’s decision. In this case‚ David should consider: - Political‚ Economic‚ Social‚ Technological (PEST) issues analysis: (i) Political: Bureaucracy and corruption may potentially slow down the pace of enhancing the necessary infrastructure for internet accessibility and
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Extended experimental investigation: effects on membranes of environmental stress Background It is not possible to observe membranes directly‚ so this investigation is an indirect study of the effects of different substances and treatments on living beetroot cells. Beetroot cells have been chosen for this activity because each beetroot cell has a large central vacuole bounded by a membrane (Figure 1). Contained in the vacuole is the red pigment anthocyanin‚ which gives the beetroot its
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# 49 Diet The food an animal eat everyday is called diet. Most animals need 7 types of nutrients in their diet: carbohydrates‚ proteins‚ fats + water‚ fibre‚ vitamins‚ minerals. The amount of energy needed is provided mainly by our carbohydrate and fat intake. Your dietary requirements depend on your age‚ sex and activity. - Age: The energy demand increases until we stop growing. While children are growing they need more protein per kilogram of body weight than adults do. - Sex: Generally
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