24. which term refers to cells having different jobs in an organism?
a. multicellular
b. levels of organization
c. cell specialization

the answer is golgi apparatus

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

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.