This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 6 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Special bacteria convert the nitrogen gas (N2 ) to ammonia (NH3) which the plants can use in the first part of the process
is the process which converts the ammonia into nitrite ions which the plants can take in as nutrients.
After all of the living organisms have used the nitrogen, decomposer bacteria convert the nitrogen-rich waste compounds into simpler ones.
is the final step in which other bacteria convert the simple nitrogen compounds back into nitrogen gas (N2 ), which is then released back into the atmosphere to begin the cycle again
one of the primary nutrients critical for the survival of all living organisms.
most common form of Nitrogen
a catalyst who converts 4 hydrogen atoms
certain organisms known as dentrifying bacteria will process nitrate to gain
process of nitrogen turning into nitrates
Harmful human activities that have more than doubled the nitrogen fixation