Topic Content:
- Complexity of Organisms
- Advantages of Complexity
- Disadvantages of Complexity
The organization of cells into tissues, organs, and systems helps complex organisms to perform their functions efficiently.
The ability of complex organisms to survive in their environment is a product of specialization and division of labour.
Simple organisms are small in size at the cell and tissue level with one or more comparatively number of cells. The surface area to volume ratio is large. Consequently, the distance to which substances travel is short but with complex multicellular organisms, the surface area to volume ratio is small, thus creating a problem for the movement of materials.
Advantages of Complexity:
i. Different parts of the body are specialized for the different functions they carry out.
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