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Natural Selection

Natural Selection. & Selective Breeding. Changes in genetic traits with Darwin the Owl. Predict which animal is a product of Natural Selection and which is a product of Selective Breeding , and don’t forget to tell why!. -Or-. Did you get it right?. Selective Breeding. -Or-.

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Natural Selection

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  1. Natural Selection & Selective Breeding Changes in genetic traits with Darwin the Owl

  2. Predict which animal is a product of Natural Selection and which is a product of Selective Breeding, and don’t forget to tell why! -Or-

  3. Did you get it right? Selective Breeding -Or- Natural Selection

  4. This means these successful or “fit” genetic traits are passed onto the offspring. What does the saying, “survival of the fittest” have to do with Natural Selection? Natural Selection… • What: A process that results in the success of a species that is best suited for it’s environment.

  5. Texas Galapagos Islands, Ecuador Where: Early studies of Natural Selection took place on the Galapagos Islands of Ecuador. Click it!

  6. Original Finch Warbler Sharp Beaked Ground Vegetarian Cocos Cactus Small Tree Large Cactus Medium Tree Small Ground Large Tree Medium Ground Mangrove Large Ground Woodpecker • WHHOOO: Most of these studies centered around Finches of the islands. • All 13 species of Galapagos Island Finches descended from 1 South American species. This means all of these different birds adapted from one species. How are these birds related genetically? Are they similar?

  7. Selective Breeding… What: The intentional breeding of an organism to produce offspring with a desirable or improved trait. Can you think of why humans selectively breed other species?

  8. Where: Farmers selectively breed crops for higher yields, pest/drought resistance and taste. Where: Ranchers also selectively breed live stock for similar purposes as the farmers. Other animals are selectively bred for domestication. Good Can you think of any animals that are domesticated? Better!

  9. Now YOU complete a concept map that will test your knowledge of Natural Selection and Selective Breeding

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