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.

Week 3 Discussion Review the American Heart Association's home page. Research the Internet about a problem that occurs with the cardiovascular system. For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source other than the AHA's website. Review the American Lung Association's home page. Research the Internet about a problem that occurs with the respiratory system. For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source other than the ALA's website. Review this Digestive Disease's website. Research the Internet about a problem that occurs with the digestive system. For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source from your research. Review this Kidney and Urological Disease's website. Research the Internet about a problem that occurs with the urinary system. For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source from your research. Research the Internet about a problem that occurs with the nervous system . For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source from your research. Research the Internet about a problem that occurs with one of the sensory systems. For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source from your research. Research the Internet about a problem that occurs with the reproductive system . For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source from your research. Week 3 Assignment - Organ Systems Website Recommendation Blog Part 1: Initial Blog Post on an Organ System Now that you have had a chance to study the organ systems of the body, choose one system and research it further. Find a credible and reliable, scientific website that augments what you have already learned about that particular organ system. No duplicate websites are permitted. [NOTE: Neither open resources nor open blogs can be used as sources of information; see 'Researching Information' within the class for more information on appropriate credible/reliable sources of information].  Share the website with the class by writing a full paragraph summary (150 words minimum) of what you have learned or have found particularly helpful when reviewing the website. Do not copy and paste directly from the website. This blog should be written in your own words.  Also required within the initial blog post is sharing the website (specific URL) and what you have learned from this resource and/or have found particularly helpful when reviewing the website.Do not copy and paste directly from the website. This blog should be written in your own words.Any content and paraphrased information from the resource (URL) must be properly cited per APA including the specific URL (website) you are recommending.  The blog post must be directly posted in the classroom; please do not upload a Word document only.   Part 2: Response Blog Post Peruse some of the Blog entries made by your fellow classmates. Choose at least one that you found useful and comment on how the website helped you with this week's content. The comment should be 100 words minimum. For Part 2 – posting the Blog Response Post to a fellow classmate, click the “Week 3 Assignment – Organ Systems Website Recommendation Blog” to enter the assignment. The screen will refresh and on the right side will be a black bar with “Blog details” on it and below that will be your name and a down arrow. Click the arrow and all the people who have posted blog posts will be listed. Read through the post by selecting the fellow student’s name and the screen will refresh – scroll to bottom and on the bottom left will be the student’s blog post. When ready to respond, click “Comment” at the end of the blog post and then a space will open below the blog post you are responding to. When done with the response blog post, click “Add”. Then the response blog post is posted. The Week 3 Assignment – Organ Systems [Website Recommendation] Blog is worth a potential total maximum of 100 points and there are two components: (1) Part 1: your initial blog post, 150 words minimum, discussing a credible and reliable, scientific website (10 points maximum) that augments what you have already learned about that particular Organ System. The initial blog post will be scored on topic (10 points), grammar and spelling (10 points), content and discussion of the organ system (30 points maximum), usefulness of the website (10 points maximum), submitted on a different day than Part 2 (5 points) and meeting the minimum blog post length of 150 words (5 points) (2) Part 2: response blog post to a fellow classmate and it will be scored on grammar and spelling (2.5 points), content and discussion of what was learned about the organ system from the blog post and/or visiting the website and resource (15 points maximum) and meeting the minimum blog post length of 100 words (2.5 points maximum).