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 ceca is thought to increase digestive and absorptive area. It is located anterior to the midgut
"Midgut or Mesenteron: It is a short tube and is marked by the gastric caecae at the anterior border and the insertion of malpighian tubules posterior. It is the part where the digestion and absorption of food takes place.Gastric Cecae: These are also called hepatic cease or enteric cecae. They are blind tubes, in cockroach eight in numbers. It's proximal end open at the beginning of the midgut. It increases the surface area of midgut which facilitates digestion and absorption of food"
Structures which are derived from the midgut are:horizontal and ascending duodenum (3rd and 4th parts)jejunumiliumcecumascending colonfirst two-thirds of the transverse colon
Moth's have three parts for their digestive systems foregut, midgut, and hindgut. Most of the work of digestions is done in the midgut, and the hindgut absorbs water and salts.
foregut, midgut and hindgut.
There are two mesenteric arteries in the human the superior and inferior. Both leave the descending aorta directly nad supply the GI tract. These arteries provide the definition of the the boundaries of the foregut, midgut and hindgut. The superior supplies the midgut and the inferior supplies the hindgut.
The caecae secrete digestive juices and pour them into the stomach. The peritrophic membrane protects the stomach wall and is fully permeable to enzymes and digested food.
Alain Lalonde has written: 'Comparison of the residence time in the midgut of the lepidopteran larvae Bombyx mori of the toxins HD-1, HD-73 and the protein HSA'
The Stomodeum (Foregut), Mesenteron (Midgut), and the Pructodeum (Hindgut) http://ipm.illinois.edu/cropsci270/syllabus/images/0203image01.gif If you want to check it out for yourself
The grasshopper has six pairs of gastric caeca. The purpose of gastric caeca is to increase the surface area of the midgut, which enhances the ability to secrete digestive enzymes and to extract helpful products from food that has been partially digested.
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