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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.
Branchiostoma lanceolatum was created in 1774.
Endostyle are found in invertebrate chordates. It functions similarly to the thyroid found on vertebrates. The urostyle on the other hand is a bone found in a frog. It is combined with two illium bones, a pubis and ischium to create a grouping of bones that function similarly to a human pelvis.
lancelet branchiostoma
An amphioxus is a lancelet, particularly of the genus Branchiostoma.
An amphioxus is a lancelet, particularly of the genus Branchiostoma.
The notochord, an endostyle, pharyngeal slits and a post-anal tail
in branchiostoma, the inner lining of the vestibule produces a complicated ciliated grooves and ridges, called wheel organ.it creats a whirling currents of water to sweep the food matters into mouth.
An adult sea squirt has an endostyle and pharyngeal slits which are two of the five hallmark characteristics of chordates.
Try looking up sea squirts (Tunicata), acorn worms (Enteropneusta) and Pterobranchia. Oh, and Branchiostoma of course, the lancelet. And in some ways hagfish aren´t considered real vertebrates either.
Bats are classified under the phylum Chordata because they possess a notochord during their development. The presence of a notochord is a defining characteristic of the phylum Chordata, which includes all animals with a dorsal nerve cord at some stage in their life cycle.
The six functions of language are expressive (to express thoughts and feelings), directive (to give commands or requests), informative (to provide information), phatic (to establish social contact), aesthetic (to create beauty or evoke emotions), and metalinguistic (to discuss language itself).
Function