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BIOLOGY 171 Lecture Notes - Lecture 5: Logistic Function, Exponential Growth, Paramecium

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School
U of M
Department
Biology
Course
BIOLOGY 171
Professor
Meghan Duffy

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Document Summary

We caution you to use the key as sparingly as possible. Answer keys offer a false sense of security. Understanding why an answer makes sense is very different from being able to reach that answer yourself (as you will be expected to do on an exam). Population b has a per capita birth rate of 0. 7 and a per capita death rate of 0. 8. Population c has a per capita birth rate of 0. 2 and a per capita death rate of 0. 1. In 2003, there were 194 nesting whooping cranes in the western north american flock. How do you know: in 1947, there were 40,000 nesting kemps ridley sea turtles on a particular mexican beach. Assume that these numbers are representative of the population of kemps ridley sea turtles. Assume that is 0. 9 and is reasonably constant. In this example, time is measured in years.

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Related Questions

The growth rate in the United States is low relative to manyother countries. Read the pamphlet “World Population: MoreThan Just Numbers” and visit the website, “U.S.Census Bureau: International Data Base (IDB)”. Once in theIDB, select (one at a time) China, Mexico, and the United States(specifying the years as 1950, 2009, and 2050) and compare theshapes of the graphs for these countries, and how the shapes areprojected to change in the future.

Choose one of the graphs (at the IDB population pyramid site –make sure to indicate the graph chosen). Explain what the shapes ofthat population pyramid tell about the population.

Based on your readings, would you expect a program to increasethe education of women within the population to lead to changes inthe shape of the population pyramid? Explain your answer. What ifthere was an increase in the education of men?

In your opinion, what strategies would be most effective incontrolling population growth in undeveloped countries?

Is the low rate of population growth a problem in the U.S.? Whyor why not?

The growth rate in the United States is low relative to manyother countries. Read the pamphlet “World Population: MoreThan Just Numbers” and visit the website, “U.S.Census Bureau: International Data Base (IDB)”. Once in theIDB, select (one at a time) China, Mexico, and the United States(specifying the years as 1950, 2009, and 2050) and compare theshapes of the graphs for these countries, and how the shapes areprojected to change in the future.

Choose one of the graphs (at the IDB population pyramid site –make sure to indicate the graph chosen). Explain what the shapes ofthat population pyramid tell about the population. Answer in oneparagraph, less than 250 words.

Based on your readings, would you expect a program to increasethe education of women within the population to lead to changes inthe shape of the population pyramid? Explain your answer. What ifthere was an increase in the education of men? Answer in twoparagraphs, less than 500 words.

In your opinion, what strategies would be most effective incontrolling population growth in undeveloped countries? Answer in500 words or less.

Is the low rate of population growth a problem in the U.S.? Whyor why not? Answer in 500 words or less.

Imagine that as a farmer (who also has an excellent educational background) you can partner with genetic engineers to design the perfect crop for the changing climate of the region that your chose. Begin by choosing a crop that is common in the region in which you have decided to live. Then describe how you would genetically engineer your crop to deal with projected future climate change for that region with an emphasis on photosynthetic pathways. For this answer you should consider ways in which you might make your crop more efficient within the context of future atmospheric CO2 concentrations, temperature, and precipitation. But you must choose a definitive pathway or pathways for your crop – you cannot design a ‘smart’ crop that can sense climate and adjust accordingly.

I'm doing potatoes in the Northwest region, I know it usually uses C3 pathways, I'm not sure what an ideal genetically engineered one would look like!