When my partner threw the paper wad at the plastic I flinched and twitched almost every time he threw the wad at me. This reflex would have protected my eyes if the transparency had not been there because it protects your body and the danger that might be coming.
Last month when me and my other partner did the ruler dropping reflexes I think it also had to do something with the Nervous system too. The reason why I think that the ruler dropping experiment and the paper wad throwing reflex experiment had something to do with both experiments because they both involve blinking reflexes. They involve this reflex because when you you eyes shut vaigly