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Although the atmosphere contains about 78% nitrogen gas, only a few types of organisms are able to convert it into a form usable by plants and other...
Although the atmosphere contains about 78% nitrogen gas, only a few types of organisms are able to convert it into a form usable by plants and other producers. What organisms can combine nitrogen in the atmosphere with hydrogen atoms to form ammonia?
denitrifying bacteria
earthworms
consumers
producers
nitrogen-fixing bacteria