Complete the sentence to describe a yearly test used for certifying the health of horses. The Coggin's test checks for the presence of
in horses.

i think is d

Explanation:

D

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

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.