Galapagos Finch Evolution KEY-1 PDF

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Name:_________KEY_______ Date:__________

Galapagos Finch Evolution

(HHMI Biointeractive)  - https://youtu.be/mcM23M-CCog

~16 minutes

1. What is the “mystery of mysteries? _________h  ow new species form____________ 2. The Grants’ study on the island of Daphne Major studied what organisms? _______f inches_______ 3. Where did the 13 species of finches on the islands come from?_____from the mainland________ 4. How did the Grants catch the finches? _______n  ets______________ 5. What features did they measure? _____size and shape of beak, weight______________ 6. What happened in 1977 to the island? _________d  rought___________________ 7. What type of birds were more likely to survive after this event? ___b  irds with large beaks___________ 8. After the El Nino event in 1983, which birds were more likely to survive? _____birds with small beaks____ 9. What keeps different species from mating on the Galapagos islands? ____songs (and appearance)_____ 10. The most likely scenario explaining the different finches on the islands is that: a) different birds migrated to different islands 11. Examine the graph below.

b) one species evolved into many different species

Summarize what happened to the finch population between 1976 and 1978.

_______________the average beak depth became larger _________________________ ________________________________________________________________________________

12. Why did the finch populations change from 1976 to 1978? ______finches had to find food and those with small beaks died, larger beaked birds survived and passed that trait to their offspring _  ____________  ttps://www.biointeractive.org/classroom-resources/origin-species-beak-finch www.biologycorner.com |  h

Name:_____________________________________ Date:__________

Galapagos Finch Evolution

(HHMI Biointeractive)  - https://youtu.be/mcM23M-CCog

~16 minutes

1. What is the “mystery of mysteries? ______________________________________________________ 2. The Grants’ study on the island of Daphne Major studied what organisms? ______________________ 3. Where did the 13 species of finches on the islands come from?_______________________________ 4. How did the Grants catch the finches? __________________________ 5. What features did they measure? ______________________________________________________ 6. What happened in 1977 to the island? ________________________________________________ 7. What type of birds were more likely to survive after this event? ____________________________ 8. After the El Nino event in 1983, which birds were more likely to survive? _________________________ 9. What keeps different species from mating on the Galapagos islands? ___________________________ 10. The most likely scenario explaining the different finches on the islands is that: a) different birds migrated to different islands 11. Examine the graph below.

b) one species evolved into many different species

Summarize what happened to the finch population between 1976 and 1978.

________________________________________________________________________________ ________________________________________________________________________________

12. Why did the finch populations change from 1976 to 1978? ________________________________________________________________________________ ________________________________________________________________________________  ttps://www.biointeractive.org/classroom-resources/origin-species-beak-finch www.biologycorner.com |  h...