1.Consequently RNA interference was observed is eukaryotic organisms including fungi, Arabidopsis,C. elegans, trypanosomes, hydra, planaria, Drosophila, zabrafish, and mouse.
2.Undulipodium (pl. undulipodia) A whiplike organelle that protrudes from a eukaryotic cell and is used chiefly for locomotion (e.g. motile gametes) or feeding (e.g. ciliate protoctists).