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.
Clusters of sporangia are structures found on the underside of fern fronds where spores are produced and released for reproduction. Each sporangium contains spore-producing cells that undergo meiosis to produce haploid spores.
There is typically one sorus per leaflet on a fern. The sorus is a cluster of sporangia where spores are produced for reproduction.
on the underside of a fern frond
Along the base of the shaft
Sorus is a structure found on the underside of fern leaves that contains the sporangia, which produce spores. The spores give rise to the gametophyte generation in ferns.
A complete sorus consists of a cluster of sporangia (spore-producing structures) surrounded by an indusium (protective covering) and is typically found on the underside of fern fronds.
No, not all ferns grow korus. Korus are the coiled structures found at the tip of fern fronds that eventually unroll to form the leaves. Some fern species do not produce korus and instead have a different structure to produce their leaves.
Sorus
In ferns, a sorus is a cluster of sporangia on the edge or underside of a fertile frond.
it has 8 structures the sorus, blade, pinna, petiole, fiddle head, adventitious roots, frond and rhizome,
The fern produce spores called sori(sorus) on the lower surfaces of pinna(leaflets)
Fern plants reproduce by producing spores, which are called "sporangia". These sporangia release spores into the environment, which can then develop into new fern plants under suitable conditions.