SUNFLOWERS one of the most amazing flowers God created. Recent studies suggest that sunflowers share a common mechanism with human beings, the sleep-wake cycle or the circadian rhythms. A little bit geeky would be heliotropism. What is he·li·ot·ro·pism? /ˌhēlēəˈtrōpizəm/ noun BOTANY The directional growth of a plant in response to sunlight. ZOOLOGY The tendency of an animal…