Here's why:
* Cell: The basic unit of life, not visible to the naked eye.
* Tissue: A group of similar cells working together (e.g., plant tissue like xylem or phloem).
* Organ: A structure composed of different tissues that work together (e.g., a flower or a seed).
* Organ System: A group of organs working together (e.g., the reproductive system of a plant).
* Organism: A complete living being, capable of carrying out all life functions (e.g., a flowering plant).
In this case, plants, seeds, and flowers are all individual organisms, even though they are interconnected through the life cycle of the plant.
