Analysis: Beak Of The Finch

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Olga Belavus AP Biology Mrs. Round August 15, 2014 Beak of the Finch Chapter 1 Darwin describes natural selection as daily and that natural selection happens everywhere in the world. Whatever is weak is diminished and the good variations are kept for the next generations. a. Darwin never observed natural selection in action because natural selection was a theory he stressed about for twenty years after the Beagle 's expedition. b. Darwin believed we could never watch natural selection in action because the world changes everyday. The finches of Daphne Major are an ideal population to study because no predators can travel to the island and the finches cannot escape the island. Chapter …show more content…

The large ground finches have a higher curve while the medium ground finches have a smaller head and a tiny beak. The place in which the finches live is what changes their appearances and also the weather helps decide the appearance of these finches. The variation in finches is one in three and the variation in sparrows is four in ten thousand. 4. The study of variation is important to evolutionary biology because every little thing counts no matter how slow the world changes and the news help biologists determine more knowledge that can help make the world more understanding. Chapter 4 19th and early 20th century biologists failed to recognize the importance of variation in beak size because they believed that the watchmaker placed everything in its rightful spot in the beginning and that "natural selection is blind to the beak of the finch" according to …show more content…

But guppies with less color have a hard time to mate which does not benefit him, but the less he stands out the more time he has to live. The guppies in safer waters emerged with larger spots of colors and they tried to differ themselves from the gravel and the guppies in dangerous waters became smaller and showed less color and blended to the gravel. Chapter 7 The aftermath of El Niño on Darwin 's finches was the result of more than two thousand finches. Also, the wetness resulted in a game change for the Tribulus and for the finches who ate small-seed crops. Biologists reconciled the apparent paradox or rapid evolution by creating a universal unit, calling it the darwin. The results of natural selection in Darwin 's finches and British Columbian sparrows change my view of species because every living animal changes to survive conditions that get in the way of normal life. Chapter 8 The finch hybrids before the El Niño of 1983, two different species did not mate each other but during the child, a scandens mated with a fortis and produced four fledgings. Chapter

In this essay, the author

  • Explains that the finch hybrids before the el nio of 1983, two different species did not mate each other but during the child, a scandens mated
  • Explains that the "invisible coasts" are barriers created by the finches' behavior and that that is how they find their mates by carefully choosing their kind.
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