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Grey Wolf

Husky. Chihuahua. Grey Wolf. Recall from our selective breeding cases that all dogs come from the grey wolf (left), and the Husky (top right) was bred by selecting for medium size, thick fur coat and high energy.

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Grey Wolf

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  1. Husky Chihuahua Grey Wolf Recall from our selective breeding cases that all dogs come from the grey wolf (left), and the Husky (top right) was bred by selecting for medium size, thick fur coat and high energy. The Chihuahua (bottom right) also came from the grey wolf. What traits do you think breeders selected for the Chihuahua?

  2. In selective breeding, humans influence the course of evolution. What determines the course of evolution in natural selection? • Sometimes when humans change the environment in which an organism lives, the organism must adapt over many generations to survive. In this case, the adaptation is an unintentional result of human actions. Is it natural selection or selective breeding?

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