CheckPoint - Succession and Natural Selection

CheckPoint - Succession and Natural Selection - adaptable...

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Succession and Natural Selection 1 CheckPoint: Succession and Natural Selection SCI/275
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Succession and Natural Selection 2 In the “Succession animation” the ecosystem is considered a secondary succession. Water floods the valley from the formation of beaver damns. The flood destroyed existing vegetation and created a change in species composition. Through the change new organisms evolved and produced new vegetation. The determining factor that establishes the animation as a secondary succession rather than a primary succession is the existing vegetation. In a primary succession the change of species composition would take place in an area that was not inhabited with any organisms or vegetation. Limbless salamanders evolved according to Darwin’s theory of natural selection. Throughout time salamanders reproduced and the offspring would be passed on the traits
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Unformatted text preview: adaptable to the new and changing environment. The environment changed from mostly water to more dry lands. When the environment was mostly water the salamander did not require limbs to navigate and survive. The salamander evolved with growing limbs to manage the solid terrain. The traits passed on of larger limbs helped improve the salamanders chance of survival. Managing the solid ground presented the salamander more opportunity of finding food rather than being the food of the overpopulated waters. The survival of the salamander was probably very much due to their evolution and ability to reproduce in high enough numbers. Through the evolution process many offspring do not survive. The ongoing change of traits and adaption to the environment can determine the existence of any species....
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CheckPoint - Succession and Natural Selection - adaptable...

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