Polyphyletic (from ancient Greek πολύς - numerous and φῦλον - tribe, clan) is a term used in biological taxonomy to designate a group of organisms that have similar characteristics, but descended from different ancestral forms.
A polyphyletic group includes organisms that acquired similar characteristics through convergent evolution rather than inheriting them from a common ancestor. Thus, a polyphyletic group unites organisms with different origins and is an artificial rather than a natural group.
In contrast to polyphyly, a monophyletic group includes all the descendants of one common ancestor and only them. Polyphyly is considered undesirable when classifying organisms because it combines unrelated forms. Modern taxonomy tends to distinguish only monophyletic groups.
Polyphyletic groups are groups of organisms that have different origins, but are still similar to each other in a number of characteristics. They can be both animals and plants.
In biology, the term “polyphyletics” is used to refer to a group of organisms that have a common origin but are divided into several groups. This can happen due to errors in classification, or when scientists are unable to determine exactly how these organisms are related to each other.
Polyphyletic groups can have both positive and negative consequences. For example, if a group of organisms has a common origin and similar structure, this can help scientists better understand how these organisms interact with each other and what mechanisms underlie their functioning.
However, if a group of organisms is divided into several polyphyletic groups, this can lead to confusion and errors in classification. In addition, polyphyletic groups can make it difficult to understand the evolution of organisms and their interactions with each other.
Thus, the term “polyphyletic” is used in biology to refer to groups of organisms that have different origins but are similar in a number of characteristics, and can be useful in studying the evolution and interactions of organisms.
The polyfinetic approach to object classification is a methodology that argues that actual phyletic relationships may be much more complex than taxonomists typically imagine. Rather than dividing organisms according to their origins and relationships into distinct monophyletic branches or groups, polyphyletic classification seeks to show a realistic picture of phyletic genesis.