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7th Grade Unit 2: Ecosystems Lesson 2: Ecosystems Vocabulary of Instruction: Abiotic •Inanimate, inorganic, not living. •Examples: – Water – Soil – Sunlight – Rocks – Wind/Air Adaptation • Changes in an organism's physiological structure or function or habits that allow it to survive in new surroundings. Biome • Is the largest ecological unit. It consists of a group of related ecosystems that share some kinds of special plant life and weather patterns. Aquatic Biome Grassland Biome Ocean Biome Biosphere •Areas of the earth where life exists. Biotic • Relating to, produced by, or caused by living organisms. • Examples: – – – – – Rabbit Wolf Bacteria Plants/Grass Mushroom/ Fungi Community • All the organisms that live in a given habitat and affect one another as part of the food web or through their various influences on the physical environment. Ecosystem • Is the network of the interactions between organisms and their environment, and has both living and nonliving components. Lake Ecosystem River Ecosystem Marine Ecosystem Habitat • Is the set of physical and environmental conditions that determines where an organism or group of organisms can live most comfortably; factors include climate, amount of rainfall, and amount of sunlight. Population •Is a group of organisms of the same species that live together. Species •Is a group of organisms that have common ancestors, and are made up of one or more populations.