Which of these describes the similar functions of capsids and nuclear membranes?
A Both transport proteins throughout the structures.
B Both provide energy for activities in the structures.
C Both protect genetic information for the structures.
D Both code for the proteins needed for reproduction of the structures.
?

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.