Relationship of economy and faith

this protocol describes a detailed procedure for intracellular flow cytometry staining.

i wish i could with all of them i can barley see the first one so here's the answer to the first one b

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.

c is the correct answer!