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UNIT 2 - Checklist Use this as a checklist. By the end of this unit you should be able to do the following: General outcome 1 explain that the biosphere is composed of ecosystems, each with distinctive biotic and abiotic characteristics. Specific Outcomes for Knowledge define species, population, community and ecosystem and explain the interrelationships among them explain how terrestrial and aquatic ecosystems support a diversity of organisms through a variety of habitats and niches identify biotic and abiotic characteristics and explain their influence in an aquatic and a terrestrial ecosystem in the local region explain how limiting factors influence organism distribution and range explain the fundamental principles of taxonomy and binomial nomenclature, using modes of nutrition at the kingdom level and morphological characteristics at the genus species level. General Outcome 2 explain the mechanisms involved in the change of populations over time. Specific Outcomes for Knowledge - General Outcome 2 explain that variability in a species results from heritable mutations and that some mutations may have a selective advantage discuss the significance of sexual reproduction to individual variation in populations and to the process of evolution compare Lamarckian and Darwinian explanations of evolutionary change summarize and describe lines of evidence to support the evolution of modern species from ancestral forms; i.e., the fossil record, Earth’s history, biogeography, homologous and analogous structures, embryology, biochemistry explain speciation and the conditions required for this process describe modern evolutionary theories; i.e., punctuated equilibrium, gradualism Key Terminology Checklist I can define/explain/provide examples for the following: 3.1 biotic abiotic species population community ecosystem biosphere 3.2 Taxonomy kingdom domain binomial nomenclature dichotomous key 4.1 variation biological species selective advantage natural selection selective pressure 4.2 theory of evolution by natural selection paleontology inheritance of acquired characteristics fossil record transition fossils biogeography homologous structures analogous structures 3.3 climate biome habitat range ecological niche biodiversity limiting factors 4.3 speciation geographical barriers adaptive radiation gradualism punctuated equilibrium