This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
CAM schema day cropped.svg en Schematic of CAM photosynthesis day processes CAMschemadaycropped svg UTC CAMschemaday svg Peter coxhead derivative work Peter coxhead talk Reduced height ok for vertical placement with matching night diagram but not for horizontal placement Peter coxhead CAMschemadaycropped svg Cczero Original