13 Jan 1. Compare and construct a line graph
Lab7:Ecological Interactions
INSTRUCTIONS:
· On your own and without assistance, complete this Lab7AnswerSheet electronically and submit it via the Assignments Folder by the date listedintheCourse Schedule (under Syllabus).
· To conduct your laboratory exercises, use the Laboratory Manuallocated 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 Lab7Answer Sheet in the following format: LastName_Lab7 (e.g., Smith_Lab7).
· You should submit your documentas a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility.
Pre-Lab Questions
1. 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 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
1. 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…).
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