Name two organs that are easy to repair using stem cells. what are two organs that are difficult to repair using stem cells?

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.