Species and Populations

Answer the following questions based on the slidecast videos and Chapter 4. Try your best to summarize the information and write what you have learned in your own words. Any text that you directly copy needs to be in quotation marks. Copying from the textbook will not be enough to get a high grade (see the grading rubric below). For full credit, you should either explain the information in your own words or if you copy text from the book, you should also provide your own interpretation. You should include information from BOTH the slide casts and reading, when appropriate. Visit https://en.wikipedia.org/wiki/Species for more details.

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Please re-copy each question above your answer, making sure to include the question number. Answer in full sentences and DESCRIBE when asked to do so.

From “Defining Species and Populations and the Variations Within Them”
1. What is the difference between a “population” and a “species”? (note: subspecies are essentially different populations of a species, typically recognized based on their geographic location) What are viable and fertile offspring, and how do these ideas relate to the definition of a species?

2. What is the difference between the genotype and phenotype of an organism?

From “Defining Evolution” (some of this info is in the previous section)
3. What is an allele? What is the definition of evolution? (use the word “allele” in your answer)

From “Mutations”
4. What are mutations (one of the evolutionary forces)? Describe the difference between a deleterious and a beneficial mutation.

From “Genetic Drift”
5. Describe the process of genetic drift (one of the evolutionary forces). Briefly explain population bottlenecks and founder effects. What is the primary risk of inbreeding within a population?

From “Gene Flow”
6. Describe the process of gene flow (one of the evolutionary forces).

From “Natural Selection”
7. Describe the process of natural selection (one of the evolutionary forces) and explain the example of the peppered moth in your own words.

From “Sexual Selection”
8. Describe the process of sexual selection and explain the example of the peafowl in your own words. (note: Sexual Selection is typically considered it’s own evolutionary force, meaning that most scientists recognize 5 evolutionary forces in total: mutations, genetic drift, gene flow, natural selection, sexual selection)

From “Micro- to Macroevolution”
9. What is the difference between macro and microevolution?

10. What is speciation? Explain the difference between allopatric and sympatric speciation.

You will be graded using the following rubric:

Grading Rubric
A  90-100%    Outstanding work with thorough, detailed, and clearly written answers

Here are the videos,

And every part that you will need had been highlighted in the file.

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