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What would you predict about beak size if the Galápagos experiences a wet year? choose correct  answer(s) a.More birds with small beaks will survive b.More birds with large beaks will survive c.Both a. and b. d.All of the above.

What would you predict about beak size if the Galápagos experiences a wet year? choose correct  answer(s) a.More birds with small beaks will survive b.More birds with large beaks will survive c.Both a. and b. d.All of the above.

Human Anatomy & Physiology (11th Edition)
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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  1. What would you predict about beak size if the Galápagos experiences a wet year?

choose correct  answer(s)

a.More birds with small beaks will survive

b.More birds with large beaks will survive

c.Both a. and b.

d.All of the above.

GALÁPAGOS FINCHES: FOOD SUPPLY AND BEAK SIZE Drought Drought 10.0 Drought 9.8 9.6 In dry years, finches had to eat large, hard seeds, and bigger beaks were selected for. 9.4 Unusually wet year 9.2 9.0 1976 1982 Year 1978 1980 1984 In wet years, finches could eat small, soft seeds, and smaller beaks were selected for. O Adaptation does not march toward an optimal endpoint. Average beak size within a population continues to fluctuate accordina to food supply. Average beak size (mm)
Transcribed Image Text:GALÁPAGOS FINCHES: FOOD SUPPLY AND BEAK SIZE Drought Drought 10.0 Drought 9.8 9.6 In dry years, finches had to eat large, hard seeds, and bigger beaks were selected for. 9.4 Unusually wet year 9.2 9.0 1976 1982 Year 1978 1980 1984 In wet years, finches could eat small, soft seeds, and smaller beaks were selected for. O Adaptation does not march toward an optimal endpoint. Average beak size within a population continues to fluctuate accordina to food supply. Average beak size (mm)
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