Analogous Vs. Homologous Changes Simulation

Big Question

• What strategies do populations use to survive?

Focus Question

• How do homologous and analogous structures arise and how might they effect an organisms ability to survive?

Specific Lab Question

• How does evolution lead to homologous and analogous structures?

Knowledge Probe• http://education-portal.com/academy/lesson/a

nalogous-structures-definition-examples-quiz.html#lesson

• http://evolution.berkeley.edu/evolibrary/article/homology_01

• http://www.visionlearning.com/en/library/Biology/2/Adaptation/68

Article One

Summary:

3 Important Facts

Article 2

• Summary

• 3 Important Facts

Article 3

• Summary

• 3 Important Facts

Challenge I: Make a Flying Device that can fly in a relative straight flight pattern in the air for at least 3

seconds or 5 meters, your choice.

• Make two flying device using the materials available from the two separate tubs. (not all materials must be used) Take a picture of your devices

• Test your device. If is successful move onto challenge II, if it is not Roll the die to determine the type of change that can be made. (refer to the Roll Chart)

• Make the change to the device or devices that need improvement and test again.

• Continue rolling the die and making changes until the device can successfully perform the challenge.

• Record all trials and changes in the qualitative data section of the lab.

Roll Chart

• 1: Make two changes by folding or twisting a material or the device

• 2: Make one change using tape• 3: Make one change by adding a material

using tape or other adhesive• 4: Make one change by removing a material• 5: Make one change by tearing or cutting• 6: Your Choice: Choose a change 1 through 5

to do.

Straight Flyer Data Section:(For both devices) Use the next few slides to organize Straight Flyer Data. It should include picture of devices, qualitative

flight description, and die roll that created the change

• Start

First Change

Second Change

Third Change

4th Change

Data Section: (For both devices) Curved Flyer Data Section should include picture of device, qualitative flight description, and die rolls and subsequent

changes and pictures

Challenge II: Convert the flying device that flies in a straight line into a device that can fly in a circle using the

same roll chart.

What would be considered the analogous structures or devices in this simulation? Why

What would be considered the homologous structures or devices in this simulation? Why?

How was convergent evolution represented in this simulation?

The Roll Chart was intended to mimic random mutations, in what ways was this consistent with evolutionary theory and it

what ways was it not?

How could this activity be improved to better simulate

evolution?