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Unit: Plant biology

Light: it's not just for photosynthesis! Plants use light cues to regulate many aspects of their growth and development. For instance, have you ever seen a plant bend its stem towards a window or light? Learn why this happens at the level of light receptors and hormones!

About this unit

Plants may seem less interactive than animals. But they actually have many ways of responding to their environment, changing their growth or physiology to make the best use of available resources. Learn more about plants and their response to environmental cues.