Centre No. Candidate No. Paper Reference(s) Surname Paper Reference Initial(s) 7 0 4 0 7040/01 0 1 Signature Examiner’s use only London Examinations GCE Biology Ordinary Level Paper 1 Monday 10 May 2010 – Morning Time: 1 hour 30 minutes Team Leader’s use only Question Leave Number Blank 1 2 3 4 5 Materials required for examination Nil Items included with question papers Nil 6 7 8 9 Instructions to Candidates In the boxes above‚ write your centre number
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I turned this paper in two days late‚ but the teacher was so impressed that I still got 100% Excellent; I couldn’ t have written a better paper myself. DIVERSITY OF PLANTS Plants evolved more than 430 million years ago from multicellular green algae. By 300 million years ago‚ trees had evolved and formed forests‚ within which the diversification of vertebrates‚ insects‚ and fungi occurred. Roughly 266‚000 species of plants are now living. The two major groups of plants are the bryophytes and the
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mouthwash / hair / other named source • satellite DNA / repetitive sequences used for profiling • amplification of DNA by polymerase chain reaction / PCR • cutting DNA into fragments using restriction enzymes • separation of fragments of DNA (by electrophoresis) • separation according to the length of the fragments • pattern of bands obtained / different pattern of bands with DNA from different individuals • used for criminal investigations / example of use in criminal investigation
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JEFF MADURA SOLUTION MANUAL PDF Ebook Library JEFF MADURA SOLUTION MANUAL Are you looking for Jeff Madura Solution Manual? Here is Jeff Madura Solution Manual you have to read before operating your stuff‚ so you can use it correctly. Jeff Madura Solution Manual is now available online and you can download it directly from our online library. This Jeff Madura Solution Manual comes PDF document format. If you have lost your Jeff Madura Solution Manual‚ you can download a new copy here. The Jeff
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[pic] Good planning is central to successful teaching - and effective planning requires a clear set of learning objectives. In order to generate learning objectives‚ you need first to check the syllabus requirements. These may be expressed in a variety of ways. For example‚ they may be given as topic headings‚ or learning outcomes‚ or competence statements. The precise form varies according to the type of qualification. In order to understand the uses and characteristics of learning objectives
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Copper is an element that occurs in minor amounts in the earth’s crust. Estimates of average crustal prevalence are on the order of 0.0058 percent by weight. Deposits considered to be economically recoverable at current market prices may contain as little as 0.5 percent of copper or less‚ depending on the mining method‚ total reserves‚ and the geologic setting of the deposit. Here is the flow sheet on how to process copper from Zenith. Copper Process Flow Sheet: Copper ore is first quarried from
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34B Frog cardiovascular Physiology: computer simulation 1. What was the baseline heart rate for the frog? Ans: 59-63 bpm 2. Which wave is larger‚ the one for atrial constriction or the one for ventricular contraction? Why Ans: Ventricular. It shows the strength of the ventricle as it pumps blood‚ and it is a thicker muscle to pump stronger as it contracts 3. At what time during the contraction cycle was it possible to induce an extrasystole? Ans: The time during the relaxation part of
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must you use lead pencil‚ instead of a pen‚ to mark your chromatography paper? A lead pencil should be used instead of a pen because the ink of the pen would dissolve in the eluting solution and separate. The components of the ink could mix with the other ink/ dyes that would be tested on the same chromatogram. Thus‚ a lead pencil should be used. 2. Why should you avoid touching the surface of the paper to be used for amino-acid chromatography? We should avoid touching the surface of the chromatogram
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Biology PEKA SPM 2013 Contraceptive methods Name : Bridget Lo Yen Class: 5 Amanah Subject Teacher : Puan Syafiza Ibrahim Date of submission : 26/7/2013 CONTENT PAGE NO. CONTENT PAGE A INTRODUCTION B DATA AND DISCUSSION DESCRIPTION PROCEDURES ADVANTAGES DISADVANTAGES DIAGRAM C CONCLUSION D REFERENCES INTRODUCTION 1. Family planning is used by couples who wish to limit their number of children‚ and to control the timing of pregnancy. This is important
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Separation of Amino Acids by Cation Exchange Chromatography Introduction and Purpose: Amino acids are small biomolecules that have a carboxylic acid backbone in common‚ as well as an amino group attached to a saturated carbon. There are many amino acids‚ but there are 20 most commonly know amino acids. Amino acids are the fundamenta building blocks of other biomolecules like proteins and ezymes (Davidson‚ 2015). This experiment examined a mixture of 3 amino acids. The purpose of this experiment
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