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.

Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter47: Conservation Biology And Biodiversity
Section: Chapter Questions
Problem 12RQ: Which two extinction risks may be a direct result of the pet trade? climate change and exotic...
icon
Related questions
Question
  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)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:
9781305389892
Author:
Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:
Cengage Learning