The leaves absorbed the polymer, which settled into tiny cavities inside the lower part of the leaf. (sciencenewsforstudents.org)
They found that when the potassium channel is open, water molecules quickly bind to tiny cavities within the protein structure, where they block the channel in a state that prevents the passage of ions. (sciencedaily.com)
Because do you know what happens to tiny cavities of rot? (lauraraeamos.com)