How does isolation relate to speciation

What feature of cell theory is best demonstrated in the image

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?

What is a traditional chinese touch therapy involving finger pressure applied to specific areas of the body to restore the flow of qi.