Nitrogen Fixation Crossword Puzzle

QUESTIONS LIST:

• fixed nitrogen : nitrogen in a state where plants can adsorb it.
• decomposers : organisms that return fixed nitrogen to the soil.
• symbiosis : a relation where both parties benefit.
• fertile : describes the amount of nutrients in soil.
• nitrogen fixation : process that makes nitrogen absorbable.
• cyanobacteria : free living, nitrogen fixing bacteria that live in soil and water.
• leaching : process that moves fixed nitrogen from where it originated.
• nodules : the growths that keep the bacteria in the roots.
• denitrifiying : bacteria that break down fixed nitrogen.
• denitrification : process that returns fixed nitrogen to di-nitrogen gas.
• bacteria : the only organisms that can convert nitrogen.
• legumes : the plants that can house the bacteria that convert nitrogen.
• rhizobia : nitrogen fixing bacteria that live in roots.
• dinitrogen : unfixed nitrogen in gas form.