Warm-Up: Read “Taking a Trip to the Beach…” On your sticky note… Look back on your annotations on the radiometric dating text set. How aware are you of what you think while reading? (are you on the beach, snorkeling…? What evidence from your annotations did you use to come to this conclusion? Date Session # Activity Page # 2/13-14 9 Isolation & Speciation 22 Beak of the Finch: genetic variation & speciation 23 Homework Read pages 17B-25B, answer questions 1-5 on page 25B Seahawk Spotlight: Delshawn Thompson, Kendall Ohmes, Brennan Graves, Michael Dobson

8.L.4 Understand the evolution of organisms and landforms based on evidence, theories and processes that impact the earth over time. 8.L.4.1 Summarize the use of evidence drawn from geology, fossils, and comparative anatomy to form the basis for biological classification systems and the theory of evolution 8.L.4.2 Explain the relationship between genetic variation and an organism’s ability to adapt to its environment

TLW explain the the relationship between genes and evolution taking notes, view video, answering review and analysis questions.

Can U Survive? P 20 Complete the questions for this activity Why did some members of this species not survive? What adaptations of different traits help some members survive while others did not? Did all members without an adaptation die immediately? What would happen to this species if the environment changed?

Rock Pocket Mouse Evolution share your answers with your table

Read and annotate the graphic Read and annotate the graphic. What is the main idea about evolution that is explained in the graphic? Summarize it in one sentence. “Something happened but then”

Isolation & Speciation “SPECIATION IS DUE TO ISOLATION” Or “ISOLATION CAUSES SPECIATION”

Speciation Isolation 2 populations of the same species are physically separated They can’t reproduce with each other. They do not share genes between their Populations. Different mutations occur in each population. Different selective pressures exist in each population’s environment Speciation Evolution of a new species from an old one due to environmental changes.

The Kaibab squirrel evolved from the Albert squirrel when the Colorado river split the Albert species into two separate populations, thus creating two separate gene pools. natural selection worked separately on each group and led to the formation of two distinct species of squirrels. Kaibab Albert

1. Genetic variations in the Ground Finches. “Beak of the Finch” Video p23 During the video, complete your assigned column you will share with others when the video is over. 1. Genetic variations in the Ground Finches. 2. Environmental changes on Daphne Major that affected the finch population 3. Factors that lead to the creation of different species of Galapagos finches

Sorting Finch Species Go to the web site on your question sheet. Follow the directions to complete the activity.

Exit Ticket…graded Explain how genetic variation affects the ability of a species to adapt. Use EVIDENCE from classroom activities and videos to support your response.