Which nutrient tends to cycle within a single ecosystem? water carbon nitrogen phosphorous

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

multiplying and dividing the two decimals and the eqations by the same number of the overalls