The edge is the cutting sector of a knife.
The term phylum can have two different etymological origins. Depending on whether one root or another is considered, the meanings are different.
On the one hand, filo may come from the Latin word filum , which translates as “thread.” Another possibility is that the concept derives from the Greek phŷlon (translatable as "race" ).
The edge of a knife
If we focus on its Latin origin, edge can refer to the sharp edge or the tip of a cutting element. The edge, in this way, is the cutting part of a knife, scissors, sword , etc.
That is why the edge is usually associated with the blade of the weapon or tool. This is the flat sector whose edge is used to generate the cut or incision.
The sharper the utensil, the greater the cutting capacity. Take the case of kitchen knives: if they are well sharpened, they can cut food without any problem. On the other hand, if the edge is worn, the task will be arduous.
If we focus on daggers, knives, swords or other weapons of this type, the edge and the tip are the factors that define their damage capacity . A saber that is in good condition will hurt anyone who brushes its edge.
The edge
The idea of edge is also used to name the edge of something . Said border can be symbolic ; That is, it is not a physical area.
Being “on the edge of death,” for example , means being close to death . If a person says “I was on the verge of death due to a bacterial infection,” they are indicating that the action of a microorganism almost took their life.
In the same way, being “on the edge of madness” implies a proximity to losing one's mind . For some reason, those who claim to be in that position feel that they may no longer have a connection with reality .
Arthropods form a phylum of the animal kingdom.
Phylum in biology
In the field of biology , the use of phylum is resorted to from the Greek phŷlon . A phylum is a category used by taxonomy to classify species.
Let us remember that taxonomy is a scientific discipline that addresses the bases, methodologies and objectives of a classification. In the context of biology, taxonomy makes it possible for plants and animals to be placed in a systematic and hierarchical order according to their characteristics.
Returning to the concept of phylum, it refers to the set of organisms that have the same ancestry and that share a certain organizational model . The edge is placed above the class and below the kingdom .
Some examples
The poriferans constitute a phylum of the animal kingdom. Those who make up this phylum are aquatic invertebrate species that, thanks to a network of conduits, filter water to obtain sustenance. The calcareous , the homoscleromorphs , the demosponges and the eumetazoans are different classes of poriferans.
The broadest and most diverse phylum is that made up of arthropods . This includes invertebrates with exoskeletons and articulated appendages. Based on this definition, it can be stated that spiders and insects , among others, are arthropods.