Lab7

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UMUC Biology 102/103

Lab 7: Ecological Interactions

INSTRUCTIONS:

On your own and without assistance, complete this Lab 7 Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus).

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 7 Answer 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 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 | | |...