Plankton is a mass of tiny animals and plants that live in the surface layer of the sea.
...its usual diet of ~ and other small organisms.
N-UNCOUNT
Plankton is a mass of tiny animals and plants that live in the surface layer of the sea.
...its usual diet of ~ and other small organisms.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012