10.2- Darwin’s Observation

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Variation
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Any difference between cells, individuals organisms, or groups of organisms of any species caused either by genetic differences or by the environmental factors on the expression of the genetic
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Adaptation
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Process by which an animal or plant species becomes fitted to it’s environment it’s the result of natural selection acting up upon heritable variation
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What accounts for the variation Darwin observed on his voyage?
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On the different islands, the turtles had long different neck lengths. (According to their diet … Longer necks meant the food was higher of the ground) and different sizes of beaks in the finches .
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Why did Darwin learn from the fossils that he observed On his voyage?
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The fact that these fossils looked like living species suggested that modern animals might have some relationship to fossil forms. Darwin also found fossil shells of marine organisms high up in the Andes mountains. Darwin later experienced an earthquake during his voyage and saw firsthand the result: land that had been underwater was moved above sea level. Darwin’s observations on his voyage supported
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Explain how wings are a adaptation for birds:
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They allow the birds to fly which they couldn’t do before. It lets them escape from predators and catch prey easier. Also, it makes travel much easier. I think the word adaptation might be misleading for this situation. How they actually evolved the adaptation is something that no one agrees on.

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