If a body is found and the temperature is determined to be 84.6 degrees, how long has the body been dead?

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

i think its the first one

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