25 Jul COMPARE AND CONTRAST THE GROWTH RATE FOR THE CONTROL WITH THE ALKALINE AND ACIDIC SOLUTIONS.
INSTRUCTIONS: Grow 10 radish seeds in 3 petri dishes one in water o Show more Lab 7: Ecological Interactions INSTRUCTIONS: Grow 10 radish seeds in 3 petri dishes one in water one in Acetic Acid(vinegar) and one in 15% Saturated Sodium Bicarbonate (baking Soda) and see what grows and how fast and what doesnt grow. I dont expect experts to do experiment but maybe give an idea of what would happen to the seeds. Pre-Lab Questions Would you expect endangered species to be more frequently generalists or specialists? Explain your answer. How does temperature affect water availability in an ecosystem? 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 Germination Data Tables and Post-Lab Assessment Table 1: pH and % Radish Seed Germination Stage/Day Observations Acetic Acid Sodium Bicarbonate Water Initial pH Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Post-Lab Questions 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). 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. 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. 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? 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). Show less
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