Match the following items with the correct phrases.

_______1. Some of these bacteria live in and near root nodules of plants called legumes, including alfalfa, clover, peas, soy beans, and peanuts.
_______2. Convert nitrogen in the air into ammonia in the soil by a process called nitrogen fixation.
_______3. Convert the nitrogen that is found in dead plants and animals to ammonia in the soil by a process called ammonification.
_______4. Convert nitrates in the soil to nitrogen in the air by a process called denitrification.
_______5. Convert ammonia in the soil to nitrites and nitrates by a process called nitrification.


a. decomposers and saprophytes
b. denitrifying bacteria
c. nitrifying bacteria
d. nitrogen-fixing bacteria
e. nitrogen-unfixing bacteria


1. d. nitrogen-fixing bacteria
2. d. nitrogen-fixing bacteria
3. a. decomposers and saprophytes
4. b. denitrifying bacteria
5. c. nitrifying bacteria

Biology & Microbiology

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