How does light affect terrestrial organisms?

Light plays a crucial role in the survival and functioning of terrestrial organisms by driving photosynthesis in plants, which converts light energy into chemical energy, supporting the food chain. It also regulates circadian rhythms in many animals, influencing behavior, reproduction, and metabolic processes. Additionally, light affects growth patterns in both plants and animals, as organisms adapt their morphology and physiology to maximize exposure to available light. Overall, light is essential for energy production, ecological interactions, and the overall health of terrestrial ecosystems.