I. Why are there only three species of finches on the mainland of South America and up to 16 different species of finches on the Islands? II. Describe the mechanism by which the original population of finches arrived on the islands. III. An original population of finches on Daphne Island is polymorphic when it comes to beak sizes. (this population feeds on seeds of varying sizes from different species of plants). At first the beak size variations and their main food source were as follows: Small beak/small seeds 25% Medium beak/medium seeds 50% Large beak / large 25%

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Use the first image to help you answer parts I. II. and III. Please.

I. Why are there only three species of finches on the mainland of South America
and up to 16 different species of finches on the Islands?
II. Describe the mechanism by which the original population of finches arrived on
the islands.
III. An original population of finches on Daphne Island is polymorphic when it comes
to beak sizes. (this population feeds on seeds of varying sizes from different
species of plants). At first the beak size variations and their main food source
were as follows:
Small beak/small seeds 25%
Medium beak/medium seeds 50%
Large beak / large 25%
Transcribed Image Text:I. Why are there only three species of finches on the mainland of South America and up to 16 different species of finches on the Islands? II. Describe the mechanism by which the original population of finches arrived on the islands. III. An original population of finches on Daphne Island is polymorphic when it comes to beak sizes. (this population feeds on seeds of varying sizes from different species of plants). At first the beak size variations and their main food source were as follows: Small beak/small seeds 25% Medium beak/medium seeds 50% Large beak / large 25%
1. Using the Galapagos finches as an
example,
answer the following questions:
Transcribed Image Text:1. Using the Galapagos finches as an example, answer the following questions:
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