Observations of organisms include... A. descriptions of why the organism has certain traits.
B. descriptions of the number, size, and arrangement of parts of the organism.
C. conclusions made about the characteristics of an organism.
D. conclusions made based on an organism’s DNA.

ANSWER: B. descriptions of the number of size, and arrangement of parts of the organism (quizlet)

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.

the question isn't complete here so i can't right an answer '_'

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.