ecosystems quiz to accompany powerpoint :) spec 2008 spec 4.0 / 5 based on 8 ratings ? BiologyEcology, ecosystems and environmental biologyA2/A-levelOCR Created by: danni :)Created on: 22-05-13 19:37 What is an ecosystem Any group of living organisms and non- living things occurring together, and the interrelationships between them 1 of 8 a decomposer is: An organism that breaks down dead or undigested organic material, e.g., bacteria and fungi 2 of 8 net productivity= gross productivity- respiratory loss 3 of 8 succession occurs in seral stages 4 of 8 pioneer species are the first species to colonise an area 5 of 8 the bacteria that turn ammonium into nitrites are Nitrosomonas 6 of 8 bacteria and fungi feed saprotrophically 7 of 8 distribution is whether or not the species you’re investigating is in your area 8 of 8
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