Meiosis is extremely critical because its job is to check that all species produced by sexual reproduction include the right number of chromosomes we should have. This activity decreases the number of chromosomes in half‚ permitting the sexual reproduction process to prevail. Because meiosis produces cells that eventually becomes reproductive cells‚ this division in chromosome number is critical to the cell cycle. Without this process‚ the combination of two gametes during fertilization would result
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THE SEARCH FOR BETTER HEALTH 1.What is a healthy organism? Discuss the difficulties in defining the terms ‘health’ and ‘disease’ * Health – state of physical‚ mental and social wellbeing. It is not just absence of disease * disease – any condition which effects the functioning of any part of a living organism * difficulties in defining health and disease; * health 1) the definition of health varies with age eg stiffness in the joints is probably more common in a 90yo
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or Puritan: Which one are you? Part I: Answer the following questions on Bradford. (These are the same questions from the Observe page.) 1. In complete sentence format‚ list three specific details you learned about William Bradford from this reading.I learned from this reading that Braford used Plain Style in his writing‚ he was a English Seperatist learder of settlers at Plymouth colony in Massachusetts‚ and he served as govenor. 2. In two sentences‚ explain why you think Bradford is significant
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Complete the Scientific Method activity on the student website. Write a 350 word paper on the scientific method. Include the following: Describe how you applied the steps of the scientific method in the activity. Describe a real-life problem where you have or could have used the scientific method. Include the steps involved in solving the problem. I completed both the tomato growing and the car starting exercises. I first identified the problem. The tomato plants were not producing
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Meiosis BIOL 1111 Introduction Meiosis is the second important kind of nuclear division. It resembles mitosis in many ways but the consequences of meiotic divisions are very different from those of mitotic divisions. While mitotic division may occur in almost any living cell of an organism‚ meiosis occurs only in special cells. In animals‚ meiosis is restricted to cells that form gametes (eggs and sperm). Each species has a characteristic number of chromosomes per somatic cell. Fruit flies
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then questioned some of the elements that may have affected the tomato plants and caused them to bear fewer tomatoes being a deficiency in warmth‚ water‚ or nutrients. I then selected my hypotheses that the plants were in need of more nutrients. Following my hypothesis I developed my prediction which was that my plants would bear more tomatoes if I was to replace the old soil with new soil before planting. I then concluded‚ based off of the graph depicting the number of tomatoes per plant‚ that my
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MITOSIS The Stages of Mitosis Mitosis is simply described as having four stages—prophase‚ metaphase‚ anaphase‚ and telophase; the steps follow one another without interruption. The entire four-stage division process averages about one hour in duration‚ and the period between cell divisions‚ called interphase or interkinesis‚ varies greatly but is considerably longer. During INTERPHASE the chromosomes are dispersed in the nucleus and appear as a network of long‚ thin threads or filaments‚ called the
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Title- Mitosis Abstract –For this lab there is no experiment to be done only questions to be answered. In this experiment we will categorize and count the cells to compute the mitotic index of the total root area. Introduction – The purpose of this experiment is to answer questions associated with the onion root tip photos that are pictured in the lab. The questions for this lab will be drawn from the discussion and review section at the beginning of the mitosis lab. Once that section has been
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Meiosis Worksheet On the lines provided‚ order the different stages of meiosis I THROUGH meiosis II‚ including interphase in the proper sequence. 1. 4th metaphase I homologous chromosome line up in the center of the cell 2.5th anaphase I spindle fibers pull homologous pairs to ends of the cell 3. 9th Telophase II 4 haploid (N) daughter cells form 4. 1st interphase cells undergo a round of DNA replication 5.7th anaphase II sister chromatids separate from each other 6. 6th Telophase I 2 haploid
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Why do cells divide? There are many reasons for this. Cells absorb and release nutrients threw their membrane. The larger the cell‚ the harder it is to get rid of all the waste that is produced. So‚ if there are many small cells (more surface area) rather than one large cell‚ the waste can be disposed of more readily. The other 3 reasons are critical to the survival of all organisms: Growth‚ repair and reproduction. • Growth: This is a result of mitosis. The more cells in an organism‚ the larger
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