Title: Counting the Number of Yeast Cells in a Suspension using Haemocytometer Objective: To estimate the number of cells of yeast per mm3 in five different dilutions of yeast suspension. Introduction: Biologists often need to count the density of cells in a liquid. “Density of cells” means “the number of cells per unit volume of liquid”. For example‚ they might want to find out the density of red blood cells in blood plasma‚ the density of bacteria in milk‚ or the population of Paramecium sp
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T.O.K Task: Discuss the problems of induction and give examples. You must include one example from your own learning experience. It would be an example you examined in one of your subjects‚ or it could be from personal experience. I think the first question we shall ask ourselves is: what is induction? Induction is the process of taking into consideration general observations or personal experiences and state them as general beliefs. On the other hand‚ deduction is made of general statements
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From the IBO TOK Guide 2015 Knowledge questions TOK is primarily concerned with knowledge questions. This phrase is used often in describing what is seen in a good TOK presentation or a good TOK essay. An essay or presentation that does not identify and treat a knowledge question has missed the point. It also occurs in the assessment descriptors that examiners use to mark the essay and that the teacher uses to mark the presentation. To put it briefly‚ the whole point of the presentat
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What is ART? 1. Sunflowers – This piece of art is a masterpiece because of its realistic features that expresses its beauty. Also comparing to the natural sciences its realistic features makes it a source of truth but is it really the most real painting? Also this could be a painting depicting empathy for the flowers in our life that we do not water… 2. Fountain – Art has to be something unusual to stand out‚ a different interpretation or a different intent by the artist himself. A good
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“We see and understand things not as they are but as we are.” Discuss this claim in relation to at least two ways of knowing. Although human DNA is 99.9% the same‚ every person is unique in his own way. Our identity‚ which consists of our values and beliefs‚ can sometimes alter our take on the reality that surrounds us‚ for it is the lens through which we evaluate the world. Given that the word “see” in the prompt stands for sense perception and “understand” stands for interpretation and meaning
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Mathematics Notes Introduction: * Characterized as a search for abstract patterns * The fact that if you take two of anything and another two you end up with four of that thing * Any circle no matter the size‚ if you take its circumference divide in by its diameter you end up with the value 3.14… * Mathematics not only gives certainty but practical value * Galileo: book of nature is written in mathematics * Mathematics also “leaves us with nowhere to hide” because
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“To what extent is our knowledge in science certain?” People usually become certain of things after they have been proven to be true. The question we ask ourselves is: “To what extent is our knowledge in science certain?”. Well we may not be a hundred percent sure that what we know is true‚ yet when it comes to facts that have been proven by scientists‚ people do believe them‚ as they are perceived to be a worthy source of information‚ especially when experiments come along the observation with
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3. ”The possession of knowledge carries an ethical responsibility”. Evaluate this claim (notes) Key words: Knowledge‚ ethical responsibility‚ evaluate - Evaluate = explore to what extent the statement is true given different interpretations of knowledge and the idea of ethical responsibility + evaluate the statement in contexts of ways of knowing and areas of knowing - Ethical responsibility = refers to the idea that you should do something to correct a harmful situation or prevent harm from
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Alexys Puch V B Titulo Prescrito: "Se puede progresar en las ciencias naturales‚ pero en las artes no es posible". ¿En qué medida está de acuerdo con esta afirmación? Escogí este título porque me interesa mucho como se progresa en la ciencias‚ debido a que las ciencias son un área que le tengo mucho interés‚ y además me gustaría saber si de la manera de cómo se progresa ahí‚ también se puede progresar en otras cosas también‚ en este caso en el arte. Cuestiones del conocimiento: ¿En qué medida
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When I go shopping in Sydney‚ after I bought clothes and foods‚ they will give me plastic bags. Should plastic bags for shopping be banned by the Australian government? Claim: Plastic bags should be banned. Evidence: Point 1: ‘“These bags are junk‚ whether you want to call them biodegradable or not. They end up in the same place: blowing around the streets or in landfill‚” said Councillor David Shiner‚ a member of Mr. Ford’s executive who surprised many by introducing the ban.’ When people
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