Plants are organisms that, like everything else that is living, are made up of cells and they are in the Plantae Kingdom (Plants, p. 2893-2894). The earliest know plants that occurred were the ferns, and they appeared about 400 million years ago (Plant, 1996). Plants get their energy from the sun by a process called photosynthesis and take in food and water by their root system. Then it travels up the stem and to the leaves and/or flower (Plants, p. 2894, 2896).
If your plant looks sick it probably has a disease. …
