4 principles of evolution

4 principles of evolution

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  • Genetic Variation: There are two different types of fish, orange fish and  blue
  • Overproduction and Struggle for survival: since the fish can lay more than 1000 eggs not all 1000 babies are going to survive.  Since there is a limited source of food some will die of starvation.
  • Differential survival and reproduction:  The fish that are orange have less of a chance surviving than compared to the blue fish.
  • change in the gene pool: since the orange fish get eaten more there will be more of the blue ones than the orange ones. Because of mutations there will be genetically different fish.
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