What are the primary tissue types present in endocardium, myocardium, and epicardium? each of these tissues serves a specific purpose. identify why each structure is composed of that particular tissue type. what purpose does each serve?

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; cnidarians;

carbon traps heat so more of it makes it hotter causing global warming. during the ice age carbon levels in the atmosphere were low so it got very cold. so the common things between them is carbon levels in the atmosphere.