Ecosystems Definitions 2 0.0 / 5 ? BiologyEcology, ecosystems and environmental biologyA2/A-levelOCR Created by: LuciaBCreated on: 05-03-14 19:53 Define the term 'microhabitat' The smallest part of the environment that supports a population 1 of 6 Define the term 'ecological niche' The role an animal or plant species plays within the environment, the status of an organism within its environment which affects its survival. 2 of 6 Define the term 'producer' Autotrophic organisms that convert light energy to chemical energy, which they then supply to consumers. 3 of 6 Define the term 'consumer' Living organisms that feed on other living organisms. 4 of 6 Define the term 'decomposer' Organisms that feed on dead organic matter, releasing molecules, minerals and energy that become available to other organisms in that ecosystem. 5 of 6 Define the term 'trophic level' The level at which an organism feeds in a food chain. 6 of 6
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