Mason_Ford_-_PopulationDynamics-StudentWS-CL_0.pdf -...

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Updated August 2020 Page 1 of 6 Click & Learn Student Worksheet Population Dynamics INTRODUCTION In the Population Dynamics Click & Learn, you’ll explore a powerful tool for learning about populations: mathematical models. As you’ll see by doing the Click & Learn and this activity, you can use models to answer questions, solve problems, and make predictions about all kinds of populations — from bacteria in your body, to wildlife across the world, to our own human populations. PART 1: Introduction to Population Dynamics Open the Population Dynamics Click & Learn and read through the introduction on the first page. 1. Describe a specific question or problem related to population dynamics that interests you. 2. Do you think the question or problem you described could be investigated using a mathematical population model? Why or why not? PART 2: Exploring the Exponential Growth Model Open the “Exponential growth model” tab and read the “Introduction” section. 3. The end of the “Introduction” describes how you could use a continuous-time, exponential growth model to simulate an E. coli population growing in a lab. Describe another specific population and situation that you could simulate with this type of model. 4. Complete the following table to explain the biological meanings of the symbols in the exponential growth model. For each explanation, give a specific example using the population you described above. Symbol Biological Meaning Specific Example N t dN/dt r N 0 5. Both dN/dt and r are types of growth rates. What are the differences between them? Proceed to the “Simulator” section for the exponential growth model. 6. No units are shown for the numbers in the “Settings” section. This is because each of these numbers can have many possible units. Give an example of possible units for each of the following: a. N 0 b. t c. r , using the units for t you gave above

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