BIO 100 Rio Salado Community College Biology & Zoology Questions

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Laboratory Exercise Questions

~~1. Record the classes for each of the arthropods listed in Procedure 1, as determined from the dichotomous key. (14 points)

a. Organism 1

b. Organism 2

c. Organism 3

d. Organism 4

e. Organism 5

f. Organism 6

g. Organism 7

h. Organism 8

i. Organism 9

j. Organism 10

k. Organism 11

l. Organism 12

m. Organism 13

n. Organism 14

~~2. Provide the family name for each shark found in Procedure 2, based on the use of the dichotomous key provided. (14 points)

a. Shark 1

b. Shark 2

c. Shark 3

d. Shark 4

e. Shark 5

f. Shark 6

g. Shark 7

h. Shark 8

i. Shark 9

j. Shark 10

k. Shark 11

l. Shark 12

m. Shark 13

n. Shark 14

~~3. Submit your dichotomous key for the assigned “imaginary biological organisms”. (10 points)

~~4. Describe a scenario when a dichotomous key might be used in the real world. be sure to include a specific example. (4 points)

~~5. Why are there only two choices for each step in the dichotomous key? (3 points)

~~6. Why are observation skills important when working with dichotomous keys? (3 points)

~~7. Taxonomy and classification.

a. Define biological taxonomy. (1 point)

b. Define biological classification. (1 point)

c. Briefly explain how they are related to one another. (2 points)

~~8. List the domain, kingdom, phylum, subphylum, class, order, family, genus, and species of humans. (9 points)

a. domain

b. kingdom

c. phylum

d. subphylum

e. class

f. order

g. family

h. genus

i. species

~~9. What is the scientific name for humans? (4 points)

~~10. It is estimated that there are more than 1 million species of insects on this planet. Based on this and information gained from this laboratory, what phylum most likely comprises over 90% of the Earth’s species? Briefly justify your answer based on concepts covered in this lab. (5 points)

~~11. Scorpions and spiders both belong to the same class called Arachnida. Birds and fish both belong to the phylum Chordata. Which two organisms are more closely related? Explain how you know based on the taxonomy and classification information provided. (5 points)

~~12. Use the evolutionary distances from the nucleotide sequences activity (Step 4 of the procedures) to determine which organism (e.g., 1, 2, 3, 4, or 5) fits into each lettered position within the diagram below. (5 points)

A. Organism #:

B. Organism #:

C. Organism #:

D. Organism #:

E. Organism #:

Application Question

~~13. How might the information gained from this lab pertaining to taxonomy be useful to you, or how can you apply this knowledge to your everyday life as a non-scientist? The application will be graded according to the rubric below. (20 points)