Unit 3: Natural Selection Pre-Assessment

Group 1

HS-LS4-2

Source 1.1

Question 1a

Short answer

(DCI) Which of the four factors of evolution do you see in the images above? Explain each one you see in detail.

Question 1b

Short answer

(CCC) What caused there to be only green beetles in the 3rd image above?

Question 1c

Short answer

(SEP) Using your understanding of evolution, construct an explanation for what you observe in the images above.

Question 1d

Short answer

(Extension) What is a gene pool and how does compare from the first image to the last image?

Group 2

HS-LS4-3

You are a biologist studying lizards on a remote island in the Caribbean. In the first 10 years of the study, resources were abundant and there were very few deaths. At year 11, there was a disease that hit the island that killed 50% of the flies that the lizards ate. You collected the following data over the 20 years of your study.

Source 2.1

Question 2a

Short answer

(DCI) Explain what advantageous heritable trait means in the context of these lizards?

Question 2b

Short answer

(CCC) What patterns do you see in the traits of the lizards over time?

Question 2c

Short answer

(SEP) Analyze the data to answer the question. What happened to the short tongue lizards half way through the study?

Question 2d

Short answer

(Extension) Provide an example of a different species that undergoes natural selection by listing how it experiences the 4 factors of evolution.

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