47 – Ecosystems

13. Nitrogen-fixing bacteria live in nodules on the roots of legumes. 14. In the nitrogen cycle, which type of bacteria converts nitrogenous wastes into ammonia? 1) bacteria of decay. 2) nitrogen-fixing bacteria. 3) nitrifying bacteria. 4) denitrifying bacteria. 15. A student measured some abiotic factors present in an aquarium in a biology ... ................
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