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
foregut, midgut and hindgut.
Three major parts of an insect's digestive system are the foregut, midgut, and hindgut. The foregut is where food is ingested and partially digested, the midgut is where most digestion and absorption of nutrients take place, and the hindgut is responsible for reabsorbing water and eliminating waste.
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.
A moth typically has six legs, two antennae, and four wings, giving it a total of 12 body parts.
Food in grasshoppers is digested in the midgut, where enzymes break down the food into smaller molecules that can be absorbed. The nutrients are then absorbed into the bloodstream through the walls of the midgut and transported to the rest of the body for energy and growth.
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'
Lysosomes
Ant lions have a simple digestive tract consisting of a mouth, esophagus, and midgut. Their diet primarily consists of other insects, which they trap and consume as larvae using their specialized cone-shaped sand pits. The digestive enzymes in their midgut help break down the insect prey into nutrients for absorption.