Frog Dissection Lab

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Frog Dissection Lab. Frog Dissection Lab

 

If you have access to a frog specimen and dissection equipment you will be able to do the actual dissection but it is not necessary for this assignment. This assignment is to do some research to find Procedures (steps of instructions) to complete a frog dissection. This would be the step that would be necessary for many experiments.

 

If you can perform the dissection you will insert pictures (or drawings) of what you see during the procedures. If you do not have a specimen then you will find pictures (or make drawings) of what would have been seen during the procedures. [footnoteRef:1] [1: When you use a scan or a picture, be sure to make it low resolution (about 100 dpi) or use the Word command to Reduce or Compress Pictures (select Picture Quality such as Email (100 dpi).]

 

Procedure Sources

Properly cite any sources (at least two) that you used for your research:

 

External Anatomy

List procedures for examining the frog’s external features and their functions. Include drawings or pictures for at least two procedures:

 

Internal Anatomy

List procedures for examining the frog’s internal features and functions. Include drawings or pictures for at least three views seen during the procedures:

 

 

BIOL200-23 Frog Dissection Lab Page 1 of 4

Frog Dissection Lab

 
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Marine Biology Mod 4

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Marine Biology Mod 4. Marine Biology 1

Running head: Marine Biology

 

 

 

 

 

 

 

 

Marine Biology

Student Name

Allied American University

 

 

 

 

 

 

 

 

Author Note

This paper was prepared for Marine Biology, Module 4 Homework Assignment taught by [INSERT INSTRUCTOR’S NAME.

 

Part I

 

Directions: For this homework assignment, you are required to answer one of the following two critical thinking questions. Please provide strong responses that demonstrate critical thinking skills. In this case, short responses may not demonstrate the level of critical thinking skill required for full credit.

 

  1. Two species of sea urchins live practically side by side on sandy bottoms. The two species appear to have the same diet (drift seaweeds and other bits of organic matter). They are able to live in the same environment without competing with each other. How might they be able to share their habitat and food resources?
  2. It is not always easy to categorize a particular case of symbiosis. Suppose a certain species of snail is always found living on a certain coral. No one has found evidence that the snail harms the coral, so the relationship is classified as an example of commensalism. How would you go about testing this hypothesis? What kinds of observations might lead to the conclusion that the snail is a parasite, or that it has a mutualistic relationship with the coral?

 

Part II

 

Essay

 

a the different physical adaptations seen in bony fish, cartilaginous fish, and tooth whales to adapt with the marine environment. Describe and discuss the physical and physiological adaptations for the following: temperature, salinity, and pressure. Look at respiratory and circulatory systems to help identify these adaptations.

Marine Biology Mod 4

 
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Micro Biology Lab Packet

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Micro Biology Lab Packet. NAME: Section/Time:

Microbiology Lab Packet #2

Think of these lab packets as homework for the lab part of the class. They are designed to help prepare you for the departmental lab exams. To answer these questions you will need to use both the lab workbook as well as your text book. In addition to these questions, you will need to turn in the signed data sheets from your workbook.

19. Describe the molecular basis behind Gram staining. What part of the bacteria is stained with the primary stain, what part is stained with the counter stain? Why do we wash alcohol over the slide before the counter stain?

18. Describe in great detail the steps in performing a Gram stain. Include incubation times. Define primary stain and counter stain. In the Gram stain, what dye is primary stain, which is the counter stain?

 

Special Stains (Capsule Ex. 3.9, Endospore Ex. 3-10, Flagella Ex. 3.12)

21. What is the stain is shown in the picture below? What is stained green, what is stained red?

22. Describe in great detail the steps in performing an endospore stain. Include incubation times.

20. What does it mean to be Gram positive, Gram negative?

image1.jpg

23. Label the different flagellum arrangements seen below.

image2.jpg

24. Describe the negative staining technique and determine when it is used.

Colony Morphology Ex 2.2

25. We can learn some information about bacteria by just looking at its growth on an agar plate. What is a small isolated growth of bacteria on an agar plate called and what can it tell us about the bacteria?

Micro lab packet 2

Kirby-Bauer Method Ex 7.3

26. Describe in great detail the technique used to determine bacteria sensitivity to antibiotics?

27. What is the type of media used in the Kirby-Bauer test and why is it used?

Describe what is observed for a bacteria that is sensitive to antibiotics in a Kirby-Bauer test, and to a bacteria that is not sensitive to antibiotics.

28. How does the antibiotic get from the disk into the agar?

Does the agar have an antibiotic beyond the zone of inhibition?

29. Define the MIC and explain how it is used to determine if a bacteria is resistant or sensitive to the antibiotic.

Is the presence of a clear zone around the disc enough evidence to determine antibiotic resistance?

Micro lab packet 2

Disinfectants Ex 2.14

30. Compare your results with the class data.

Which germicide was most effective and at what concentration?

Which was the least effective? Defend your choices.

31. Which organism seemed to be most resistant to the germicides?

32. What purpose did the four controls serve? Be specific.

 

Include Completed Data sheets for:

1. Data Sheet 3-7 (pages 201-202) Sketch & id whether Gram + or Gram – and Questions 1-2

2. Data Sheet 3-9 (pages 213-214) Sketch capsuled stained bacteria; Questions 1 & 2

3. Data Sheet 3-10 (pages 219-220) Sketch Endospore Stained bacteria; Questions 1-4

4. Data Sheet 3-12 (pages 227-228) Sketch Flagella Stained bacteria; Questions 1 & 3

5. Data Sheet 2-14 (pages 139-140) Questions 1-3

6. Data Sheet 7-3 (pages 535-536) Questions 1-7

Gram Staining 3.7

 

 

33. What is the difference between disinfectants and antiseptics?

Micro Biology Lab Packet

 
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Biology Research Paper

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Biology Research Paper. BACKGROUND

During your study of biologr, you may have found a contro- versial topic you read about to be especially interesting. This assignment gives you an opportunity to apply what you’ve learned by doing some research in outside sources and increasing your knowledge of one controversial topic.

Procedure

Go to http: / /lessons.pennfoster.com I pdt I sp0754.pdf and read the instructions for research papers. Select a controversial topic from the following choices.

r Human stem cells

I Genetically modified foods

r Climate change

r Cloning

I Designer babies

Consult resources other than the course textbook and this study guide. Examples of resources include other textbooks, journal articles, and reputable websites. Reputable online sources include enryclopedias and universitSr or governmental websites. Prepare a detailed report on the topic, including the following elements:

1. Describe the basic issue of your chosen topic.

2. Describe the basic argument of opposing viewpoints.

3. Identiff the strengths and weaknesses of both views.

4. Choose which view you agree with. 5. Explain why you agree with that view.

Incorporate the information you learned about your chosen topic from this course, but don’t limit your discussion to the textbook and study guide. Take advantage of extemal resources to provide an in-depth, comprehensive report.

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Goal

This assignment is designed to help you apply what you’ve learned from your lessons by researching and writing about a controversial topic you’ve studied and to give you an oppor- tunity to demonstrate your written communication and research skills, as well as your critical thinking skills.

1.

2.

3.

4.

5.

6.

Writing Guidelines Tpe your submission, double-spaced, in a standard print font, size 12. Use a standard document format with l-inch margins. (Do not use any fancy or cursive fonts.)

Include the following information at the top of your paper:

a. Name and complete mailing address

b. Student number

c. Course title and number (lntroduction to Biologr, SCI 120)

d. Research project number (25088100)

Read the assignment carefully and address the topic suggested. Use proper citation in either APA or MLA style,

Be specific. Limit your submission to the topic suggested.

Include a reference page in APA style. On this page, list websites, journals, and all other references used in preparing the submission.

Proofread your work carefully. Check for correct spelling, grammar, punctuation, and capitalization.

Research Project

Grading Criteria

Your grade will be based on the following criteria:

Content 75 percent Written comrnrrnication 20 percent Format 5 percent Here’s a brief explanation of each of these points.

Gontent

The student

I Describes the basic issue of his or her chosen topic

r Describes the basic argument of opposing viewpoints

r Identifies strengtJrs and weaknesses of both the pro and the con views

t Chooses a view with which he or she agrees

r Explains why he or she agreed with the chosen view

Written Communication

The student

r Uses correct grammar, spelling, punctuation, and sentence structure

r Stays focused on the assignment

I Includes an introductory paragraph, a body with well- defined paragraphs, and a clear conclusion

I Uses his or her own words and uses quotations and citation in the form of a reference page correcfly

Format

The student includes a cover page with the following information.

r The title in capital letters

I Name and student number

I Current date

I Course title and number (Introduction to Biologr, SCI 120)

I Research project number (25088100)

Student uses standard 12-point font and l”-inch margins.

Submittlng Your ProJect

Follow this procedure to submit your project online:

1. Log on to the Penn Foster website and go to My Courses.

2. Click Take Exam next to the lesson you’re working on.

3. Attach your file as follows:

a. Click on the Browse box.

b. Locate the file you wish to attach.

c. Double*click on the file.

d. Click Upload Flle,

3. Enter your e-mail address in the box provided. (Note: This information is required for online submissions-)

4. If you wish to tell your instructor anything specific regarding this assignment, enter it in the Message box.

6. Click Submlt File.

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l!;ia;.4?.?t:,: Research Project

 

Biology Research Paper

 
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