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UMUC Biology 102/103
Lab 6: Taxonomy
INSTRUCTIONS:

·
On your own and without assistance, complete
thisLab
6Answer Sheet electronically
and submit it via theAssignments
Folder by the date listed in theCourse Schedule (underSyllabus).
·
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 6Answer 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

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

Table 2:
Classifications

Classification Level

American Green Tree Frog

European Fire- Bellied Toad

Eastern Newt

Domain

Eukarya

Eukarya

Eukarya

Kingdom

Animalia

Animalia

Animalia

Phylum

Chordata

Chordata

Chordata

Class

Amphibia

Amphibia

Amphibia

Order

Anura

Anura

Caudata

Family

Hylidae

Bombinatoridae

Salamandridae

Genus

Tursipops

Bombina

Notophthalmus

Species

cinerea

bombina

viridescens

How has DNA
sequencing affected the science of classifying organisms?

You are on
vacation and see an organism that you do not recognize. Discuss what
possible steps you can take to classify it.

Exercise
1: Dichotomous Key Practice

Table 3: Dichotomous Key Results

Organism

Binomial Name

i

ii

iii

iv

v

vi

vii

viii

ix

x

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?

Exercise
2: Classification of Organisms
Data Tables and Post-Lab Assessment
Table 2: Key
Characteristics of Some Organisms

Organism

Kingdom

Domain

Defined Nucleus

Motile

Cell Wall

Photosynthesis

Unicellular

E. coli

Yes

Yes

Protozoa

Yes

Yes

Yes

Mushroom

Yes

Yes

Sunflower

Yes

Yes

Yes

Bear

Yes

Yes

Figure 4:Exercise
2 – Classification of Organisms Flow Chart

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 each of the kingdoms and what makes them different than the
examples used here)?

3.
What
questions would you have asked instead of the ones that you answered above when
classifying the organisms?