Other research suggests that favipiravir induces lethal RNA transversion mutations, producing a nonviable viral phenotype. To ramp up output, economically nonviable industrial plants were constructed. Each follicle contains two seeds, though around 36% of seeds are nonviable. "Yoshi's Safari" failure signified that the Super Scope was commercially nonviable for Nintendo. In each brood, there was also one nonviable green specimen. Their society, as a whole, is seemingly nonviable. However, Eznis' access to international routes was denied thereby making the Boeing 737 project nonviable. However, the project proved to be nonviable, not least because seal numbers had declined massively. Many of these were themselves dying, and Jamestown was quickly judged to be nonviable.