Evidence of Evolution Warm up

What characteristic did Darwin observe about the finches on the Galapagos Islands?

• Their feathers 
• Genotypes 
• Their beaks
• Their body sizes

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An example of a homologous structure 

• human arm and bird wing
• rat appendix  and human appendix
• wing of butterfly and bird wing

An example of an analogous structure includes:

• wing of a butterfly and bird wing
• bird wing and human arm
• rat appendix and human appendix

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Embryos of chickens, fish and humans look very similar. They all have folds known as gill pouches in the neck region. What may this suggest?

• they all formed in the ocean 
• they all evolved from a common ancestor
• they are all going extinct

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Studying the structures of organisms during early stages of development is called

• Fossil Record

• Homologous Structures

• Embryology

A heritable trait that increases an organisms chance of survivial.

• Mutation

• Fitness

• Adaptation

• Vestigial structure

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What is the significance of the fossil record in studying evolution?

• It shows that organisms have not changed over time.

• It provides direct evidence of organisms that lived millions of years ago.

• It disproves the theory of natural selection.

• It only includes the remains of plants.

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