Use the diagram to answer the question.

Which describes Structure C?

red blood cells, which carry oxygen

plasma, which carries nutrients

white blood cells, which fight disease

platelets, which help blood clot

the sphincter muscles at the end of the digestive tract is the anus.

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.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves