lab 6
preiou5
the_pro.docx
Kingdom Animalia: The Protostomes
Michele Hopkins
Ocean County College
Prof. Vanja Velickovska
General Biology II DL1
October 28, 2014
Introduction
In this lab I will label, define, and explain the ecology and physiology of these organisms. I will identify their significance in the environment, as well as clarify features which are used to categorize organisms into these groupings. Lastly, I will discuss why a particular organism is believed to be a Protostome or a Deuterostome.
Procedure
Exercise 1:Mollusca - The Mantled Invertebrates
1.From the How to Dissect book, read through Chapter 1 plus pages 51 through the top
paragraph of page 70 in Chapter 5 before proceeding with this exercise. Ensure that you
thoroughly understand what you will be doing before you begin.
2. Follow the instructions listed in How to Dissect pp. 51-70 of Chapter 5 to explore the anatomy
and physiology of the clam.
Exercise 2: The Segmented Worms
1. From How to Dissect, read from page 9 through the first several paragraphs of page 22 in
Chapter 2 of the book before proceeding with your investigation. Ensure that you thoroughly
understand what you will be doing before you begin.
2. Follow the instructions listed in How to Dissect, pp. 9-22 of Chapter 2 to explore the anatomy
and physiology of the earthworm.
Exercise 3: Arthropoda – The Jointed Animals with
Exoskeletons
1. From How to Dissect, read from page 37 through the top of page 47 in Chapter 4 of the book
before proceeding with your investigation. Ensure that you thoroughly understand what you
will be doing before you begin.
2. Follow the instructions listed in How to Dissect, pp. 37-47 of Chapter 4 to explore the anatomy
and physiology of the grasshopper.
Exercise 4: Class Insecta
1. Take a field trip around your neighborhood and attempt to find representatives of each of
these orders in nature.
2. Conduct an online search for more information on Insecta in general or specific species.
Kingdom Animalia: The Protostomes
Margaret E. Vorndam, M.S. Version 42-0073-00-01
Lab Report Assistant
This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.
Observations
Experiment
Kingdom Animalia: The Protostomes
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Exercise 1: Mollusca – The Mantled Invertebrates
Results
A. Conduct an online search on the name to find out more about these interesting organisms. Fill in Table 1 to summarize the general characteristics of this phylum.
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Table 1: Phylum Mollusca |
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Morphology: Level of Organization |
Ecology Where found |
Nutrition |
Reproduction |
Symmetry |
Environmental Role |
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Refer to Explanation of Table Common Characteristic Categories and Types of Answers Expected, page 23
B. What specific exterior and interior organs and systems did you identify during your dissection? How do these benefit this organism?
C. Describe how an open circulatory system functions.
Questions
A. List several beneficial uses of mollusks. What is their role in their environment? Could we live without them?
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B. List several detrimental effects of mollusks, if any.
C. Why are mollusks classified as animals?
D. Provide several examples of Mollusks and where they are found.
E. How do mollusks differ from the acoelomate and pseudocoelomate organisms?
Exercise 2: The Segmented Worms
Results
A. Conduct an online search on the name to find out more about these interesting organisms. Fill in Table 2 to summarize the general characteristics of this phylum.
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Table 2: Phylum Annelida |
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Morphology: Level of Organization |
Ecology Where found |
Nutrition |
Reproduction |
Organ Systems Present |
Environmental Role |
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Refer to Explanation of Table Common Characteristic Categories and Types of Answers Expected, page 23
B. What specific external and internal organs and systems did you identify during your dissection? How do these benefit this organism?
Questions
A. List several beneficial uses of Annelids. What is their role in their environment? Could we live without them?
B. List several detrimental effects of Annelids, if any.
C. Why are Annelids classified as animals?
D. Are all Annelids hermaphroditic?
E. Provide several examples of Annelids and where they are found.
F. How do Annelids differ from the acoelomate and pseudocoelomate organisms?
G. What is vermiculture?
H. How are Annelids used medicinally?
Exercise 3: Arthropoda – The Jointed Animals with
Exoskeletons
Results
A. Conduct an online search on the name to find out more about these interesting organisms. Fill in Table 3 to summarize the general characteristics of this phylum.
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Table 3: Phylum Arthropoda |
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Morphology: Level of Organization |
Ecology Where found |
Nutrition |
Reproduction |
Organ Systems Present |
Environmental Role |
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Refer to Explanation of Table Common Characteristic Categories and Types of Answers Expected, page 23
B. What specific external and internal organs and systems did you identify during your dissection? How do these benefit this organism?
Questions
A. List several beneficial uses of Arthropoda. What is their role in their environment? Could we live without them?
B. List several detrimental effects of Arthropoda, if any.
C. Why are Arthropods classified as animals?
D. Do Arthropods, as a group, undergo metamorphosis? Explain.
E. Provide several examples of Arthropods and where they are found.
Exercise 4: Class Insecta
Questions
A. What insects did you observe? Name at least three, and specify the Insecta Order to which they belong.
B. How are insects beneficial?
C. How are insects harmful?
D. Name at least three roles that insects have in facilitating environmental health. Give specific examples.
E. Besides reducing competition for food, what could be the purpose of metamorphosis in the insect life cycle?
F. Why is the process of metamorphosis an advantage?
G. Given the vast numbers of insects on earth, and the ages of certain species such as the cockroach, are insects a more successful species than are humans? Why or why not?
Laboratory Summary
What have you learned from doing this laboratory that you did not know before you began it?
