Levels of organization
by AILYN REYES
1. Organs
1.1. Different types of tissues that function together form a organ. The stem of a organ is a organ because it transports the water. Blood vessels are organs in the shrew made up of epithelial tissues that controls the vessel.
2. Organ systems
2.1. An organ system is a group of organs that work together to preform body functions. The leaves, stems, and flowers are organs of the shoot system of the tree. An organism can have many organ systems that work together to preform all the functions the organism needs to survive.
3. Cells
3.1. An organism is a living thing made up of one or more living things. All the functions for life are preformed by one cell. Organisms made up of one cell is called unicellular cells. Multicellular cells are made up of multiple cells. Multicultural cells have more than one level of organization.
4. Tissue
4.1. Tissue is a group of similar cells that are organized to preform a specific function. Like certain specialized cells in the oak tree are small and hollow. These cells connect together to form a tissue called vascular tissue, that transports water through out the tree.
