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UMUC Biology 102/103 Lab 5: Meiosis, Lab 6: Taxonomy, Lab 7: Ecological Interactions




Question;BIO 103 Lab 5: Meiosis, Lab 6: Taxonomy, Lab 7: Ecological InteractionsBIO 103 Lab 5: Meiosis, Lab 6: Taxonomy, Lab 7: Ecological InteractionsLab;5: Meiosis;INSTRUCTIONS;?;On;your own and without assistance, complete thisLab;5 Answer Form electronically and submit it via theAssignments Folder;by the date listed on yourCourse Schedule (underSyllabus).;?;To;conduct your laboratory exercises, use the Laboratory Manual that is available;in the WebTycho classroom (Reserved Reading or provided by your instructor) or;at the eScience Labs Student Portal. Laboratory exercises on your CD may not be;updated.;?;Save;yourLab5AnswerForm in;the following format: LastName_Lab5;(e.g., Smith_Lab5).;?;You should;submit your document in a Word (.doc or.docx) or Rich Text Format;(.rtf) for best compatibility.;Experiment 1;Following chromosomal DNA movement;Procedure;Meiosis I;Prophase;I? see other attached page;Metaphase;I? see other attached page;Anaphase;I? see other attached page;Telophase;I? see other attached page;Meiosis II;Prophase;II? see other attached page;Metaphase;II? see other attached page;Anaphase;II? see other attached page;Telophase;II? see other attached page;Questions;1.;What is the state of;the DNA at the end of meiosis I? What about at the end of meiosis II?;2.;Why are chromosomes;important?;3.;How are Meiosis I and;Meiosis II different?;4.;Name two ways meiosis;contributes to genetic recombination.;5.;Why do you use;non-sister chromatids to demonstrate crossing over?;6.;How many chromosomes;were present when Meiosis I started?;7.;Why is it necessary to;reduce the chromosome number of gametes, but not other cells of an;8.;If humans have 46;chromosomes in each of their body cells, determine how many chromosomes you;would expect to find in the following;9.;Investigate a disease;that is caused by chromosomal mutations.;When does the mutation occur?;What chromosome is affected?;What are the consequences?;Lab 6: Taxonomy;INSTRUCTIONS: ?;On your own and without assistance, complete thisLab 6 Answer Form;electronically and submit it via theAssignments Folder by the date listed on yourCourse Schedule (underSyllabus).?;To conduct your laboratory exercises, use the Laboratory;Manual that is available in the WebTycho classroom (Reserved Reading or;provided by your instructor) or at the eScience Labs Student Portal. Laboratory;exercises on your CD may not be updated.?;Save yourLab6AnswerForm in the;following format: LastName_Lab6 (e.g.;Smith_Lab6).?;You should submit your document in a Word (.doc or.docx) or Rich Text Format (.rtf) for best compatibility.Experiment 1: Classification of Common ObjectsQuestions1. Did;you find that the items grouped together as you worked down the flow chart had;similar characteristics in terms of their appearance? What about function?2. Do;you feel that the questions asked were appropriate? What questions would you;have asked? What objects would be grouped together with your system?.3. Pick;10 household items (e.g. spoon, book, paper clip, etc.) and design a taxonomic;classification system to categorize them, similar to the one in Figure 2.4. Can;you devise a different classification system for the objects used in this;experiment that would distinguish each in as many, or fewer steps?.Experiment 2: Classification of OrganismsTable;2: Key Characteristics of Some Organisms;Organism;Kingdom;Defined Nucleus;Mobile;Cell Wall;Photosynthesis;Unicellular;E. coli;Bacteria;Protozoa;Protist;Mushroom;Fungi;Sunflower;Plant;Bear;Animal;Questions1. Did;this series of questions correctly organize each organism? Why or why not?2. What;additional questions would you ask to further categorize the items within the;kingdoms (hint: think about other organisms in the kingdom and what makes them;different than the examples used here)?;3. Do;you feel that the questions asked were appropriate? What questions would you;have asked?;Your Full Name;Biology 102/103;Lab;7:Ecological Interactions;INSTRUCTIONS: ? Answer Sheet electronically;and submit it via theAssignments;Folder by the date listed in theCourse Schedule (underSyllabus).? To conduct your;laboratory exercises, use the Laboratory Manual located under Course Content.;Read the introduction and the directions for each exercise/experiment carefully;before completing the exercises/experiments and answering the questions. ? Save your Lab 7Answer Sheet in the;following format: LastName_Lab7 (e.g.;Smith_Lab7).?;You should submit your document as a Word (.doc or.docx) or;Rich Text Format (.rtf) file for best compatibility.;Pre-Lab Questions1. Would;you expect endangered species to be more frequently generalists or specialists?;Explain your answer.2. How;does temperature affect water availability in an ecosystem?3. Choose;a species and describe some adaptations that species developed that allow them;to survive in their native habitat.Experiment 1: Effects of pH on Radish Seed GerminationData Tables and Post-Lab AssessmentTable 1: pH and Radish Seed Germination;Stage/Day;Observations;Acetic Acid;Sodium;Bicarbonate;Water;Initial pH;4;8;5;1;2;3;4;5;6;7;Post-Lab Questions1. Compare;and construct a line graph based on the data from Table 1 in the space below.;Place the day on the x axis, and the number of seeds germinated on the y axis.;Be sure to include a title, label the x and y axes, and provide a legend;describing which line corresponds to each plate (e.g., blue = acetic acid;green = sodium bicarbonate, etc?).;2. Was;there any noticeable effect on the germination rate of the radish seeds as a;result of the pH? Compare and contrast the growth rate for the control with the;alkaline and acidic solutions. 3. According;to your results would you say that the radish has a broad pH tolerance? Why or;why not? Use your data to support your answer. 4. Knowing;that acid rain has a pH of 2 - 3 would you conclude that crop species with a;narrow soil pH range are in trouble? Explain why, or why not, using scientific;reasoning. Is acid rain a problem for plant species and crops?;5. Research;and briefly describe a real world example about how acid rain affect plants. Be;sure to demonstrate how pH contributes to the outcome, and proposed solutions;(if any). Descriptions should be approximately 2 - 3 paragraphs. Include at;least three citations (use APA formatting).;Additional Information;Learning Objectives;?;Define ecology as interactions amongst organisms and their;environment;?;Analyze the effects of abiotic and biotic factors in an ecosystem;?;Assess how generalists and specialists define habit tolerance;Introduction;Figure 1: Note the relationship between an organism;populations, communities and ecosystems.;Ecology is the scientific;study of both the interactions among organisms and the interactions between;organisms and their environment. It is an interdisciplinary field that blends;Earth science, evolutionary biology and general biology. Ecology explores;the adaptations of organisms, the distribution of organisms and;biodiversity.;Abiotic;and Biotic Factors;E;Figure 2: Creatures have learned to thrive in a variety;of extreme environments, such as the desert climate pictured above.;Organisms have adapted and evolved anatomical, physiological, and;behavioral characteristics that compensate for variation within the;environment. The blending of ecology and evolutionary biology is probably;most evident when examining organismal ecology. In this way, the;environment shapes the organisms.;Habitat;Tolerance;Figure 3: Dandelion (Taraxicum officionale)- species like;the dandelion are very common and show no aspects of rarity making them;very common handling a broad range of tolerances.


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