Infrastructure
The study of how structures function is called physiology.
homologous structures
The cell structures is found in protoplasm. It is what helps the cells function.
the structures of a chicken wings and the human arm adapt to served different function
Leukocytes
Infrastructure
Transportation in the industrial sector has been and still remains essential. Most of the process and machines rely on various transportation technologies in order to function.
The study of how structures function is called physiology.
homologous structures
They don't, vestigial structures are biological structures with no known function that evolved from structures in distant ancestors that used to have a function that is no longer needed.
The main function of the structures in a plant is to generally help in the growth of the plants. The main parts are the leaves, stem and roots. The leaves help in production of food, the stem stores the food while the roots hold the plant steady while feeding on essential nutrients from the soil.
The cell structures is found in protoplasm. It is what helps the cells function.
It is a transportation
It is a transportation
Spleen
Vestigial organs.
The key function of transportation, at its most fundamental level, is to provide basic mobility to society. source: http://www.ite.org/accessible/accessibleped.asp