The edge is the cutting sector of a knife.
The term phylum can have two different etymological origins. Depending on which root is considered, the meanings are different.
On the one hand, phylum 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 white weapon
If we focus on its Latin origin, filo can refer to the sharp edge or the tip of a cutting element. The edge, therefore, is the cutting part of a knife, scissors, sword , etc.
That is why the edge is often associated with the blade of a weapon or tool. It is the flat section whose edge is used to make the cut or incision.
The sharper the utensil, the greater its cutting ability. Take 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 point are the factors that define their capacity to damage . A sword that is in good condition will hurt anyone who touches its edge.
The edge
The idea of edge is also used to name the edge of something . This edge can be symbolic ; that is, it may not be a physical area.
Being “on the brink of death,” for example , means being close to death . If a person says , “I was on the brink of death from a bacterial infection,” he or she is indicating that the action of a microorganism almost took his or her life.
Similarly, being “on the edge of madness” implies a proximity to losing one’s mind . For some reason, someone who says they are in that position feels that they may lose touch with reality .
Arthropods form a phylum of the animal kingdom.
Edge in biology
In the field of biology , the term phylum is used, coming 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 to place plants and animals 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 phylum is situated above the class and below the kingdom .
Some examples
Porifera is a phylum of the animal kingdom. This phylum is made up of aquatic invertebrates that filter water to obtain their sustenance through a network of tubes. The calcareous , homoscleromorphs , demosponges and eumetazoans are different classes of Porifera.
The broadest and most diverse phylum is that made up of the arthropods . It includes invertebrates with exoskeletons and articulated appendages. Based on this definition, it can be said that spiders and insects , among others, are arthropods.