DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are polymers of nucleotides linked in a chain through phosphodiester bonds. In biological systems, they serve as information-carrying molecules or, in the case of some RNA molecules, catalysts.NA (deoxyribonucleic acid) and RNA (ribonucleic acid) are polymers of nucleotides linked in a chain through phosphodiester bonds. In biological systems, they serve as information-carrying molecules or, in the case of some RNA molecules, catalysts.
snow petrels live in Antarctica, they are pure white small birds with a pointy beack.now Petrels stay warm because they have especially thick feathers and if they are freezing cold the will fluff up their feathers to stop the heat from escaping.
Seals and sea lions live most of their l â¦ ives in the water but come out on land to bask in the sun. They come up during the breeding season. They like deep salt water because it provides plenty of fish to keep them alive and healthy. Seals live in places where disturbance is minimal. They like islands and rocky shores where they can bask in the sun and be close to their source of food. Also, they like sandbars, where they can also bask in the sun.