Ecology Science Olympiad Exam Questions And Answers

Ecology Science Olympiad Exam Questions And Answers Succession - answerprogressive replacement of one community by another until a stable climax is established 2 types of succession - answerPrimary: succession of vegetation from a barren desert or water to a climax community Secondary: Biotic communities develop in a place where the natural vegetation is gone but soil is present Climax Community - answercommunity of vegetation (plants, trees, fungi, etc) that have reached a steady state Selection and types - answerIndividuals with advantageous traits tend to be more successful than their peers reproductively--meaning they contribute more offspring to the succeeding generation than others do Natural Stabilizing Disruptive Directional Artificial Natural Selection - answerThe differential survival and reproduction of organisms with genetic characteristics that enable them to better utilize environmental resources stabilizing selection - answertype of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait disruptive selection - answertype of natural selection that simultaneously favors individuals at both extremes of the distribution. individuals at the extremes contribute more offspring than those in the center, producing two peaks in the distribution of a particular trait