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.
Where do sharks live? Sharks live in oceans all over the world. Most shark species prefer warmer climates and are often found in the sea around Australia, Florida and Mexico. However, other types of sharks like cold water and live in the icy waters of Alaska and Iceland. How do sharks breathe under water? Sharks are a type of fish which means they can breathe easily under water. They breathe through gills that are located on either side of their bodies. Why do sharks have so many teeth?