Suppose that following an automobile accident, a broken rib penetrates into the pleural cavity, causing air to accumulate in the space between the visceral and parietal pleura. This condition is known as a:

answer; a muscle cell, another neuron and a of the above

oxygen +1 most likely

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.