Population Dynamics in SIM Activity

The video tutorial explores how changes in birth and death rates affect population sizes. It discusses the impact of resource availability on consumer populations and focuses on investigating factors that can alter death rates. Students are guided to conduct a simulation-based investigation to predict and analyze changes in death rates, using the 'wee buug' population as a model. The tutorial concludes with a debriefing session to understand the outcomes of the investigation.

What is necessary for a population to decrease in size?

• No births or deaths

• Fewer births than deaths

• Equal number of births and deaths

• More births than deaths

In the example given, why did the fox population decrease?

• They had more energy storage molecules

• They reproduced more

• They migrated to a new area

• They had fewer births than deaths

What is the focus of the investigation activity using the wee buug population?

• To increase the number of births

• To change the number of deaths

• To observe migration patterns

• To study energy storage

What should you do before making a change in the SIM activity?

• Ignore the change marker

• Lock the population immediately

• Make small changes

• Run the SIM for a period of time

What is the purpose of using the range window in the SIM activity?

• To lock the population

• To observe changes in births and deaths

• To increase the number of deaths

• To decrease the number of births

What should you do if you think more than one change will lead to fewer deaths in the SIM activity?

• Lock the population immediately

• Ignore the other ideas

• Test more than one idea

• Test only one idea

What marks the time when a change is made in the SIM activity?

• The range window

• The change marker on the graph

• The population lock

• The energy storage molecules

What effect does decreasing the ferbal population have on the wee buug population?

• Decreases deaths

• Increases deaths

• Increases births

• Has no effect

Why does a smaller ferbal population lead to fewer deaths in the wee buug population?

• They migrate to a new area

• They require fewer energy storage molecules

• They eat more wee bugs

• They require more energy storage molecules

What would lead to more deaths in the wee buug population?

• Decreasing the ferbal population

• Increasing the energy storage molecules

• Increasing the ferbal population

• Decreasing the wee buug population