Not every relation is a function. But every function is a relation. Function is just a part of relation.
The cubic function.
Range
A formula or graph are two ways to describe a math function. How a math function is described depends on the domain of the function or the complexity of the function.
The Mandelbrot graph is generated iteratively and so is a function of a function of a function ... and in that sense it is a composite function.
The pericycle is adapted to its function of producing lateral roots by containing undifferentiated cells capable of cell division. These cells can differentiate into different types of root tissues to facilitate root growth. Additionally, the pericycle can respond to signals from the plant to initiate lateral root formation in specific locations.
Lateral roots develop from the pericycle, which is a layer of plant cells located in the outermost layer of the vascular cylinder in the root.
The pericycle in the root is a layer of cells located just inside the endodermis. Its main function is to give rise to lateral roots and to contribute to root thickening through the formation of secondary growth tissues like cambium cells. Additionally, the pericycle can also play a role in nutrient and water uptake by facilitating the movement of substances between the root vascular tissues and the surrounding soil.
Pericycle Pericycle
The pericycle typically consists of one layer of cells located between the endodermis and the vascular tissue in plant roots.
pericycle
perihelion pericycle
Lateral roots arise from the pericycle tissue in plants. The pericycle is a layer of cells located within the outer layers of the plant roots and is responsible for giving rise to lateral roots as part of the root system's growth and development.
Pericycle
The lateral roots are originated from the pericycle cells.
it is the meristametic tissues from whish pericycle and vascular bundels form
the inner layer ---> novanet