1.  Pine trees that are too tall or too short do not do as well as pine trees that are average in height. The short trees do not get as much light as tall or average trees. The tall trees are more likely to break off in storms. Tell how this is an example of stabilizing selection. Be sure to define stabilizing selection in your answer.
Your response must be at least 75 words in length.

2.  There is a moth in England called the peppered moth. Before Britain’s industrial revolution, these moths were usually salt and pepper colored. Because of their coloring, they blended in well with the tree trunks on which they tended to rest. The coloring helped them hide from the birds that ate them. During the British industrial revolution, industry expelled a lot of soot from the burning of coal into the environment. This soot darkened the tree trunks, and it was noted that black-colored moths were becoming predominant. The idea is that with soot in the environment, black-colored moths fared better than light-colored moths. There is some debate as to whether this is actually the case or not, but for the sake of this question, let’s assume it is.
In your own words, explain the concepts from the four observations discussed in 12.2 using the moth as an example. In other words, how does the moth illustrate the first observation, the second observation, etc.?
Your response must be at least 200 words in length.

3. Explain how homology is different from convergent evolution and give examples. Briefly define homologyand convergent evolution in your explanation.
Your response must be at least 200 words in length.

4.  Your organization recently purchased a large, metal shearing machine. You have been asked to identify the hazards of operating this equipment and make recommendations of ways to control the hazards. Determine at least one control strategy from each level of the hierarchy of controls (elimination, substitution, engineering, administrative, personal protective equipment). Select the control or combination of controls that you feel would be most effective. Explain the reasoning for your choices.

Your response must be at least 300 words in length.

Overview
The information you provided in your PowerPoint presentation on Threats to the Global Environment has led to productive debates at the United Nations General Assembly! Hence, they are now asking you to create an additional analysis report to respond to the issues raised in these debates.
Your fourth project as a consultant for the United Nations is to develop a report that addresses the issues raised by some of the member states of the United Nations.
Instructions
Step I. Consider the Issues
In the Presentation on the Threats to the Global Environment, you were asked to create a PowerPoint identifying the four most critical threats out of eight threats provided:

• Poor health of entire population.
• Cultural taboos.
• Review the remaining four threats that you did not use in Presentation on the Threats to the Global Environment.
• Pick two of the four to focus on in Analysis on the Threats Defense Argument assignment.
• Identify the reasons why you think these two threats are less critical than the four threats you chose for your PowerPoint presentation.
• Step II. Prepare Your Report
  The U.N. has given you the following guidelines.
  Introduction
  Briefly introduce the topic of the analysis (about 100–150 words):

1. State the topic and intent of the paper.
2. Identify the two threats you will discuss in the paper in the order in which they appear in the paper.
3. Section I. Threat 1
4. Write an opening statement describing the perception of the threat.
5. Write one page giving three reasons that explain why you saw this threat as less critical than the four you chose for your presentation in the Presentation on the Threats to the Global Environment assignment.
6. Support these reasons with at least three credible sources.
7. Section II. Threat 2
8. Write an opening statement describing the perception of the threat.
9. Write one page giving three reasons to explain why you saw this threat as less critical than the four you chose for your presentation in the Presentation on the Threats to the Global Environment assignment.
10. Support these reasons with at least three credible sources.
11. Conclusion

• Offer a summary (one page or less) of your defense of your choices that the United Nations can use to address their prioritization concerns.
• Formatting Requirements
• Your paper may consist of up to four pages (not including the cover or reference pages).
• Create headings for each section of your paper as follows:
  • Introduction.
  • Threat 1 (include the name of your chosen threat).
  • Threat 2 (include the name of your chosen threat).
  • Conclusion.
• Use and cite 4–6 credible sources in your analysis. You may use the same source for more than one threat as long as you use a minimum of four different sources. A list of potential resources is available at the end of this course guide.
• This course requires the use of Strayer Writing Standards. For assistance and information, please refer to the Strayer Writing Standards link in the left-hand menu of your course. Check with your professor for any additional instructions.
  The specific course learning outcome associated with this assignment is as follows:
• Assess the current threats to the global environment.
• Grading for this assignment will be based on answer quality, logic/organization of the paper, and language and writing skills.

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