biology ecology crossword 0.0 / 5 ? BiologyEcologyA2/A-levelAQA Created by: bambiCreated on: 08-09-13 17:39 54837211069 Across 1. A representation of the number of organisms in each trophic level in a ecosystem; the width of each block is proportional to the number of organisms in each trophic level . (7, 2, 7) 6. A group of potentially interbreeding individuals; which do not normally interbreed with any other groups to produce living fertile offspring . (7) 7. 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) 9. An organism deriving its nutritional requirements from complex organic substances. (11) Down 2. The first organism in a food chain usaully an autotroph (8) 3. The total quantity or weight of organisms in a given area or volume. (7) 4. Those features of the environments of organisms arising from the activities of other organisms. (6, 6) 5. All the members of one species in a habitat at one time (9) 8. 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. An animal that feeds on plants (9)
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