1. Does anyone know about monogenea or planaria being used in RNAi? 2. Sexual planaria are hermaphrodites, possessing both testicles and ovaries. 3. The planaria experiment is used in the story to back this theory. 4. Planaria receive oxygen and release carbon dioxide by diffusion.5. MaR1 accelerated tissue regeneration in experimentally injured planaria worms. 6. Planaria exhibit an extraordinary ability to photoreceptors and are used to move away from light sources.7. There are sexual and asexual planaria . 8. Some species of planaria are exclusively asexual, whereas some can reproduce both sexually and asexually. 9. Sanchez Alvarado is systematically turning off genes in planaria in hope of discovering which are necessary for regeneration. 10. Other common species used are the blackish " Planaria maculata " and " Girardia dorotocephala ".