Plants are imminently important to the human species (as well as other species) because directly and indirectly every organism is dependent on plants for food. Additionally, plants regulate and consume the amount of carbon dioxide in the atmosphere, which humans and other organisms find to be toxic in sufficient quantities. Lastly, some of the greatest scientific discoveries came through the study of plants (cells for example), as well as genetics). There are still processes that plants have that we cannot reproduce or understand HOW to reproduce or utilize (photosynthesis) .