7 points 1. During cell division the sister chromatids may fail to separate and the
gamete my get an extra chromosome or one less chromosome. This is
called a
epistasis
incomplete dominance
karyotype
nondisjunction

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.

i believe your answer would be c.. : )