Introduction to Systematics Worksheet

What three taxa appear in the main window when you first enter the Systematics Lab Room? At what level of classification are these three taxa?
List one trait for each of these three taxa that distinguishes it from the others.
Which of these organisms are included in Eukarya? Select all that apply.
What groups did you click through to get to classes Mammalia and Reptilia?
Which two of the following species are more closely related: red-eared slider, vampire bat, American alligator?
What is the common name of the species you have arrived at?
What is the name and level of the taxon where the two species’ lineages diverge?

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Disruption of a Marine Food Web Worksheet

Examine the graphs in the Lab Book, and describe any trends you observe among kelp, purple sea urchin, and sea otter populations.
What happened to all three populations when catastrophe struck the sea otters? Which populations were wiped out, and in what order?
Why do you think the removal of the otters caused the other two populations to crash as well?
Examine the graphs in the Lab Book. What happened to the populations’ growth patterns when 100 individuals of each species were reintroduced to the habitat?
What would have happened if you had only reintroduced the kelp and the urchin? Explain.
What if you had only reintroduced five individuals of each species? Would that have worked to restore the populations? Explain your hypothesis.
Describe the results of the simulation. Was your hypothesis supported?

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Crime Scene Forensics Worksheet

how forensic scientists take advantage of genomic variations in noncoding regions of DNA
the techniques of polymerase chain reaction (PCR) and gel electrophoresis
Introduction: In recent years, law enforcement has been revolutionized by molecular biology. When human tissues are left behind at crime scenes, these tissues can be collected and processed to yield samples of DNA, which can then be treated to isolate specific DNA fragments that are highly variable in the human population.
Which band pattern among Lanes 3 to 6 seems to be the closest match to the band pattern in Lane 2, where the crime-scene DNA fragment was loaded? Which suspect appears to be the culprit?
What is the molecular weight (in base pairs) of the fragment in Lane 2 (DNA from the crime scene), Lane 3 (Suspect 1), Lane 4 (Suspect 2), Lane 5 (Suspect 3), and Lane 6 (Suspect 4)?
Part C
How does analyzing DNA profiles using the gel electrophoresis tool allow you to draw both qualitative and quantitative conclusions about the likely identity of the suspect in this case?
Judging by the sizes of the fragments you measured in Part C, about how many repeats of the 16-base-pair sequence would you expect to find in each of the suspect’s genomes?
In this lab activity, you targeted just one fragment of DNA to build the DNA profile of each suspect and the crime-scene sample. Real-world DNA profiles target multiple fragments.
What is the advantage of targeting more than one fragment and having each DNA profile feature multiple bands?

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Environmental Issue

This Tutorial contains 2 Presentation

BIO 101 Week 5 Environmental Issue
Identify an environmental issue facing your community.
Imagine that you have been asked to educate the members of your community on this environmental issue.
Create a 12- to 14-slide presentation about your selected environmental issue. Include the following in your presentation:
 An overview of your selected issue.
 The effects of human activities on your community and the biosphere and how this has led to your chosen issue.
 The biotic and abiotic environmental components involved in this issue and how their interaction has affected the diversity of organisms in your environment.
 How energy and materials flow in your local ecosystem and how this is related to your selected issue.
 Some actions those in your community can take to diminish the issue.
Click the Assignment Files tab to submit your assignment.

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Structure and Functions of Organs

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BIO 101 Week 4 Structure and Functions of Organs
Identify an organism that lives within 50 miles of your home.
Write a 1,050- to 1,400-word paper about how the organism has adapted to survive in their specific environment. Include the following points in your paper:
 Briefly describe the environment (temperature, landscape, food sources, etc.) and describe the organism’s role in the environment. Determine which organism your chosen organism be most closely related to using a phylogenetic tree.
 Identify the structures and functions of the main organs found in your selected organism.
 Explain how the organism has evolved physiologically to become suited to its environment.
 Explain how things would change if the organism were to be transplanted to a significantly different environment:
 Would their organ system still be as efficient?  Why or why not?
 Would the organism survive in this new environment?  Why or why not?
Include the diagram and other appropriate pictures in your paper and make sure to provide a full reference for the images in your reference section.
Format your paper consistent with APA guidelines including references and in-text citations. Your paper should include a well written introduction and conclusion. Use only academic research sources.
Click the Assignment Files tab to submit your assignment.

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Physiology Test

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BIO 101 Week 4 Physiology Test
Imagine you have been asked to teach a small group of your peers about animal organs.
Create 10 multiple-choice questions to test knowledge of the structure and function of animal organs.
Address the functions of each of the following concepts in your test:
 Differences between asymmetrical, radial symmetry and bilateral symmetry.
 Differences between endotherms and exotherms.
 Definition and examples of epithelial tissue. (provide 1 example)
 Definition and examples of connective tissue. (provide 1 example)
 Definition and examples of muscle tissue. (provide 1 example)
 Definition and examples of nervous tissue. (provide 1 example)
Use the Physiology Test Template to complete this assignment.
Read the Writing Good Multiple Choice questions article on the Berkeley Lab Training website for tips on writing multiple-choice questions:http://training.lbl.gov/Resources/MultipleChoice.html
Cite your sources according to APA guidelines.
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Genetics and Reproduction

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BIO 101 Week 2 Genetics and Reproduction
Create at least a 350-word blog post in Microsoft® Word in response to the following question:
Female copperhead snakes have the ability to reproduce both sexually and asexually. In your opinion, which method is best for the species in general and why?
Develop your opinion andinclude the following in your post:
 Discuss asexual and sexual reproduction in terms of genetic diversity. How is meiosis related to genetic diversity?
 Use one of Gregor Mendel’s ideas to support your opinion.
Cite your sources according to APA guidelines. See the Center for Writing Excellence for more information on using APA style.
Click the Assignment Files tab to submit your assignment.

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