Which of the following lists puts these items in their correct order from largest to smallest? Select one:
a. Cell, gene, chromosome
b. Gene, cell, chromosome
c. Cell, chromosome, gene
d. Chromosome, gene, cell

c. Cell, chromosome, gene

ucd e e. rr. t t t t t t. to

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.