BIO LAB HELP

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lab_6_-_answer_sheet.docx

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Biology 102/103

Lab 6: Taxonomy

INSTRUCTIONS:

· On your own and without assistance, complete this Lab 6 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 6 Answer Sheet in the following format: LastName_Lab6 (e.g., Smith_Lab6).

· You should submit your document as 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

Start

Does the organism have a defined nucleus?

Does the organism perform

photosynthesis?

Is the organism mobile?

Kingdom:

Plant

Kingdom:

Fungi

Yes

No

Is the organisms unicellular?

Kingdom:

Animal

Yes

No

Kingdom:

Protist*

Kingdom: Bacteria

Yes

No

Yes

No

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?

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