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.
Polar Bear. Polar bears live in cold weather where they can hunt seals. These seals are hunted in the opening sea ice called leads. They live in the U.S. (Alaska), Canada, Russia, Norway, and Greenland.Many people think that polar bears live in Antarctica, but they do not; penguins do.Polar Bears habitats have been coming endangered.This is due to the climate changes and greenhouse emissions.hey live in the U.S. (Alaska), Canada, Russia, Norway, and Greenland. Many people think that polar bears live in Antarctica, but they do not; penguins do. Polar Bears habitats have been coming endangered. This is due to the climate changes and greenhouse emissions.