Earth Science Ecology Group 11 Objectives: * To define Ecology * To differentiate abiotic and biotic components of the ecosystem. * To identify the different types of ecosystem. * To know the different elemental cycles * To understand the importance of the natural habitat and the effects of migration. * To know have an overview of what is food chain and food web * To differentiate renewable from non-renewable resources * To know what is population‚ migration
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Science Review Sheet: Sustainable Ecosystems 1. Carrying Capacity: The carrying capacity of a biological species in an environment is the population size of the species that the environment can sustain indefinitely‚ given the food‚ habitat‚ water and other necessities available in the environment. In population biology‚ carrying capacity is defined as the environment’s maximal load‚ which is different from the concept of population equilibrium. Population size decreases above carrying capacity
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organization for ecology. Organism‚ species‚ population‚ community‚ ecosystem 3.) Describe the different levels of organization for ecology. An organism is an individual living thing. A species is a group of organisms that are able to produce fertile offspring and share common genes. 4.) Describe the different sources of energy for an ecosystem. (sun‚ organic matter) The sun essentially provides energy for the entire ecosystem because it helps producers produce‚ and the consumers eat the producers
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are an ecologist studying ecosystems. In this assignment‚ you are given three separate sets of data to study. *Note: You do not have to relate the information in the three sets of data to one another. Review the Temperature and Precipitation data‚ Intraspecific Competition data‚ and Interspecific Competition data located on your student website. Analyze the data provided in each graph. Relate your analysis to
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Bio1. Explain the significance of the principle of competitive exclusion. ............................................................................................................................................... ............................................................................................................................................... .......................................................................................................................................
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the organisms (biotic) and the conditions (abiotic) which exist in an area Abiotic factors: all the non-living factors in an environment‚ such as rainfall‚ temperature‚ soil. Biotic factors: All the living organisms in an area – such as producers‚ predators and parasites. Population: All the members of one species living in an area Community: The total of all the populations living in an area (i.e. all the biotic factors) Ecosystem: The community of living organisms and the abiotic factors affecting
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31. Molds and mushrooms are similar in the process of reproduction. They both reproduce asexually through the process of sporulation. Why these organisms reproduced anywhere? a. because the spores are lighted directly by the sun. b. because the spores are transported by air and wind. c. because the spores are very small and heavy. d. because the spores are grafted to another plant. 32. In flowering plants‚ there are two events that lead to reproduction. What are these two events? a. Fertilization
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Study Buddy Ecology ● Ecology is the study of interactions among organisms‚ and between organisms and the physical and chemical factors making up their external environment ● Ecologists study both the non-living (abiotic) or physical environment‚ and the living (biotic) environment. Physical environment ● Amount of light ○ Light intensity affects the distribution and growth of both plants and animals ● Amount of water ○ Xerophytes are plants which can live in conditions of prolonged
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e.‚ not a study of environmental problems‚ but rather a study of interactions among organisms and environment) Levels of Organization • Individual organism • Population • Community • Ecosystem (with the abiotic environment) Limiting Factors – abiotic vs. biotic Adaptation • Ecotypic adaptation vs. phenotypic plasticity • Examples Examples of Laws and Rules governing organism’s/population’s success • Liebig’s Law of the Minimum • Blackman’s
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Chapter 3 Reading Questions: 1. Core Case Study: “Have you thanked your insects today?”- Explain why insects are significant. Many of the earth’s plant species depend upon insects to pollinate them. Carnivorous insects‚ such as the praying mantis‚ control the ‘pest’ insect population. 2. What percentage of the species on this planet consists of insects? Animals? Plants? 53% are insects; 20% are other animals; 18% are plants. 3. Give three examples of how we benefit from microbes. Soil bacteria
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