Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches? A) The finches evolved traits to help them survive in different environments. B) The finches had different traits that influenced the environment in which they chose to live. C) Genetic variation occurred amongst the finches, giving some a genetic advantage in a changing environment, allowing them to better survive. D) Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed.

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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1) Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches?
 
A) The finches evolved traits to help them survive in different environments.
 
 
B) The finches had different traits that influenced the environment in which they chose to live.
 
 
C) Genetic variation occurred amongst the finches, giving some a genetic advantage in a changing environment, allowing them to better survive.
 
 
D) Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed.
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The image depicts the concept of natural selection among finches. It illustrates the evolutionary diversification of an ancestral finch species into three different types based on their feeding habits. The process is driven by natural selection:

1. **Ancestor Finch**: The diagram begins with a single ancestral finch species.

2. **Natural Selection**: Arrows indicate the evolutionary pressure that leads to the diversification into different species. This process is labeled as "Natural selection."

3. **Diversified Finch Species**:
   - **Insect Eating**: One branch shows finches adapted to eating insects. These birds have evolved traits that help them in catching and consuming insects.
   - **Woodpecker Type Insect Eating**: Another branch shows finches that have adapted to a woodpecker-like method of insect consumption, likely involving specialized beaks for boring into wood or other substrates.
   - **Seed Eating**: The third branch shows finches adapted to eating seeds, with beak shapes that support this diet.

The diagram effectively demonstrates the role of natural selection in the adaptation and diversification of species based on available ecological niches and food sources.
Transcribed Image Text:The image depicts the concept of natural selection among finches. It illustrates the evolutionary diversification of an ancestral finch species into three different types based on their feeding habits. The process is driven by natural selection: 1. **Ancestor Finch**: The diagram begins with a single ancestral finch species. 2. **Natural Selection**: Arrows indicate the evolutionary pressure that leads to the diversification into different species. This process is labeled as "Natural selection." 3. **Diversified Finch Species**: - **Insect Eating**: One branch shows finches adapted to eating insects. These birds have evolved traits that help them in catching and consuming insects. - **Woodpecker Type Insect Eating**: Another branch shows finches that have adapted to a woodpecker-like method of insect consumption, likely involving specialized beaks for boring into wood or other substrates. - **Seed Eating**: The third branch shows finches adapted to eating seeds, with beak shapes that support this diet. The diagram effectively demonstrates the role of natural selection in the adaptation and diversification of species based on available ecological niches and food sources.
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