biology ecology crossword 0.0 / 5 ? BiologyEcologyA2/A-levelAQA Created by: bambiCreated on: 08-09-13 17:41 93684251107 Across 1. The first organism in a food chain usaully an autotroph (8) 4. A group of potentially interbreeding individuals; which do not normally interbreed with any other groups to produce living fertile offspring . (7) 7. An organism deriving its nutritional requirements from complex organic substances. (11) 8. A sequence of organisms in an ecosystem in which each is the food of the next organism in that sequence . Arrows represent energy flow through the chain. (4, 5) 9. A feeding level in a food web - defined by the method of obtaining food . All the organisms in a particular _________ are the same number of energy transfers away from the producers. (7, 5) 10. The geographic area occupied by an ecosystem (7) Down 2. A representation of the energy in each trophic level in a ecosystem . The width of each block is proportional to the energy in each trophic level.It is usually measured in KJ M.^-2 year^-1. (7, 2, 6) 3. The maximum population that an ecosystem can support (8, 8) 5. The role of a species within a ecosystem ; its location/ spatial habitat and functions - relationships with other organisms -and it's effect on the environment (5) 6. The communities/ living organisms (biotioc factor) and environmental factors (abiotic factor) in a particular area . These factors are interacting and independent, They make up a self contained system That's self supporting in terms of energy flow. (9)
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