Final answer:
Roots are considered an organ, while plates, if referring to plant cells, are at the cellular level of the biological organizational structure. The levels progress from oxygen atoms to planet Earth, demonstrating increasing complexity and encompassing larger systems.
Step-by-step explanation:
The question pertains to the levels of organization in the biological world, which is how scientists categorize and understand the complexity and interrelationships of life. Roots and plates, as parts of a plant, fall into various levels depending on context. Roots are generally considered an organ as they are comprised of various tissues working together for the plant's nutrient absorption and stability. If by "plates" the student means "plant cells", these are examples of the cellular level of organization. The hierarchy of biological organization can be demonstrated through a diagram beginning with the smallest unit, an oxygen atom, and expanding out to the most encompassing, planet Earth:
- Oxygen atom
- Water molecule
- Skin cell
- Liver (organ)
- Elephant (organism)
- Wolf pack (population)
- Tropical rainforest (ecosystem)
- Planet Earth (biosphere)
This order reflects the complexity and inclusivity of each level, starting with the basic building blocks of matter (atoms) and progressing to the vast scale of the biosphere which includes all of life and ecosystems on Earth. Understanding these levels helps to study life from its molecular genetics machinery to the expansive diversity of ecosystems. The organization within this hierarchy is nested, with smaller elements contributing to the function and structure of larger units.