Ecosystems (AQA GCSE Geography)

biotic - answer-living parts of an ecosystem abiotic - answer-non-living parts of an ecosystem biome - answer-global-scale ecosystem producer - answer-plant that creates food via photosynthesis consumer - answer-creatures that consume plants or other creatures herbivore - answer-plant-eating creature carnivore - answer-animals that feed on other animals food chain - answer-a diagram that shows one way in which energy is passed from producer to its consumers food web - answer-a complex diagram showing all the ways in which energy is transferred from producers to consumers biomass - answer-the total quantity of organisms in an area decomposer - answer-a creature that breaks down dead organic matter, so that its nutrients can be absorbed by soil trophic level - answer-a stage within a food chain. Energy is lost between each stage. nutrients - answer-chemicals which are important for life. They are recycled within an ecosystem habitat - answer-where plants and animals live. biodiversity - answer-the number of different species in an ecosystem. ecosystem - answer-plants, animals and their surrounding physical environment. interrelationships - answer-the physical and chemical links between different parts of an ecosystem humus - answer-the organic part of soils (e.g. rotten leaves, worms)