Part of Biology (Single Science) Cells, organ systems and ecosystems The air that enters the nasal cavity flows down the trachea. The trachea has a number of adaptations: cartilage rings in the walls ...
Ancient viral fossils buried in our DNA are offering fresh clues about how today’s respiratory pathogens infect and spread. By tracing the shared architecture between long-extinct retroviruses and ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results