Understanding Natural Selection with a Physical Model of Bird Flight Preview CT-STEM

Making sense of it all

Let's think about how natural selection operated in the bird flight activity.

Questions

Please answer the questions below.

Question 5.1

Did your experiment result in better flying birds? Provide evidence to support your answer.

Question 5.2

Which is the step that led to the increase in the variation in the bird population?

Question 5.3

Which is the step that led to the decrease in the variation in the bird population?

Question 5.4

Compare physical features of the surviving birds of the 5^th; 10^th; 15^th and 20^th generations using the pictures you have stored.

What are the similarities you notice in these birds? Write the possible reasons for these similarities.

Question 5.5

What are the differences you notice in these birds? Write the possible reasons for these differences.

Question 5.6

Compare physical features of the surviving bird of the 20^th generation with that of the group NEXT to you.

What are similarities and differences you notice in these birds?

Question 5.7

Write the possible reasons for the similarities and differences.

Question 5.8

Compare your results with the prediction you made before the beginning of the experiment.

Question 5.9

Predict the appearance of your 20^th generation survivor bird’s descendants if the selection conditions change the worst flying bird survives to produce the most offspring.

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.