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Biology 102/103

Lab6:Taxonomy

· On your own and without assistance, complete thisLab 6AnswerSheet electronically and submit it via theAssignments Folder by the date listedintheCourse Schedule (underSyllabus).

· 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 Lab6AnswerSheet in the following format: LastName_Lab6 (e.g., Smith_Lab6).

· You should submit your documentas a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility.

Pre-Lab Questions

1. Use the following classifications to determine which organism is least related out of the three. Explain your rationale.

2. How has DNA sequencing affected the science of classifying organisms?

Experiment 1: Dichotomous Key Practice

Data Tables and Post-Lab Assessment

Table 3: Dichotomous Key Results

Organism	Binomial Name
i
ii
iii
iv
v
vi
vii
viii
ix
xi
xii
xiii

Post-Lab Questions

1. What do you notice about the options of each step as they go from number one up?

2. How does your answer from Question 1 relate to the Linnaean classification system?

Experiment 2: Classification of Organisms

Data Tables and Post-Lab Assessment

Table 2: Key Characteristics of Some Organisms

Organism	Kingdom	Defined Nucleus	Mobile	Cell Wall	Photosynthesis	Unicellular
E. Coli				Yes		Yes
Protozoa		Yes	Yes	No		Yes
Mushroom		Yes		Yes
Sunflower		Yes	Yes	Yes	Yes
Bear		Yes	Yes

Post-Lab Questions

1. 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. What questions would you have asked instead of the ones that you answered about when classifying the organisms?