How is the active soil and permafrost layered? What does this imply about their relative ages?​

explanation:

plz give me the characteristics.

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

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

your spelling is a little off : ]