Objective: SWBAT create a model that represents how organisms with common ancestors can have similar and different body structures
Do Now:
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Question 1
1.
Put the following sequence of events in the correct order by placing a “1” indicating the first event, and a “4” indicating the last event:
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Question 2
2.
How did wolves, whales, and the Mystery Fossil become so different from their common ancestor population?
Guided Notes:
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Question 3
3.
Launch Evolutionary History Modeling Tool activity: Population Changes.
In the Modeling Tool, a population is divided into two populations in different environments. In each environment, different structures are useful for survival.
Goal: Show how the body structures of the populations in each environment might change over time.
Do:
Read the information at the top of the screen.
Move organisms from the toolbar to the open locations in both branches of the tree.
Press INDICATE ORGANISM TYPE and select an option for each organism.
Tip:
You do not have to use all the organisms in the toolbar.
Practice:
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Question 4
4.
How does this model show how species that share a common ancestor can become very different from one another?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor based on body structures
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Question 5
5.
What remains stable over time in your model? What changes?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor based on body structures
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Question 6
6.
Why do you think the body structures of each population at time 2 are different?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the environmental difference between animal species with a common ancestor based on body structures
Exit Ticket:
2 points
2
Question 7
7.
Why do you think the body structures of each population at time 2 are different?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the environmental difference between animal species with a common ancestor based on body structures