which assimilate CO2 as a source of carbon. The overwhelming number of known species of bacteria, both aerobic and anaerobic, are heterotrophic. Many heterotrophic bacteria utilize sugar, alcohol, and organic acids. However, there are specialized heterotrophic bacteria capable also of decomposing cellulose, lignin, chitin, keratin, hydrocarbons, phenol, and other substances. Heterotrophic bacteria take an active part in the natural recycling of substances. Autrotrophic bacteria Autotrophic bacteria make their own food, either by photosynthesis (which uses sunlight, carbon dioxide and water to make food) or by chemosynthesis (which uses carbon dioxide, water and chemicals like ammonia to make food - these bacteria are called nitrogen fixers and include the bacteria found living in legume roots and in ocean vents). Fungi - is a member of a large group of eukaryotic organisms that includes microorganisms
13 control of, pests / diseases / fire prevention; 14 ref to coppicing / pollarding; 15 (deciduous trees) regrow from base/ idea of rotation/ cycle; 16 standards / large trees not coppiced, as encourages biodiversity; 7 [7] 16. population; habitat; community; ecosystem; (first) trophic; R tropic producers/(photo) autotrophs/autotrophic; (primary) consumers/heterotrophs/heterotrophic/herbivore; R carnivore/other qualified consumer 7 [7] 17. 1 mark per correct row Look for both ticks and crosses. If a table consists of ticks ONLY or crosses ONLY, then assume that the blank spaces are the other symbol.
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