Plants with organ-level organization include flowering plants (angiosperms), gymnosperms, ferns, and some vascular plants. These plants possess distinct organs such as roots, stems, and leaves, each performing specialized functions essential for survival and growth. The roots anchor the plant and absorb water and nutrients, the stems support the plant and transport fluids, while leaves are primarily responsible for photosynthesis. This organ organization allows for greater complexity and efficiency in plant functions.
Organ level
The fourth level of cell organization is an organ system. The levels of organization are: Cell, Tissue, Organ, Organ system.
A fly is an organism. It is made up of multiple organ systems working together.
Levels of organization are the way Biology is layered in a hierarchy. For example, organs make up one level, as the fourth level of organization.
The largest level of organization in the body is the organism level, where all the organ systems work together to maintain the functions necessary for survival. At this level, coordination and communication between different organ systems ensure overall homeostasis and proper functioning of the body. This level integrates all the lower levels of organization (cells, tissues, organs, and organ systems) to sustain life.
Organ level
The fourth level of cell organization is an organ system. The levels of organization are: Cell, Tissue, Organ, Organ system.
organ
Organ
organ
cell, tissue, organ, organ system, organism
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The first level of organization are living cells. The second level of organization are tissues. The third level of organization is an organ. The fourth level of organization is the organ system. The last level is organisms.
organ
an Organ System
thoracic cavity
There are six levels of structural organization. These consists of chemical, cellular, tissue, organ, organ system, and organismal.