An organism benefits from organ systems that work together and communicate, because these systems help an organism to
a. maintain heterogeneity.
b. maintain homeostasis.
C. carry out cell differentiation.
d. carry out complex, specialized functions.

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.

what in the weirdo : o