Question

Phylogenetic system of classification includes
A Evolutionary trends only
B Genetic trends only
C Evolutionary trends as well as morphology
D Behavioural trends in environment

Answer 1

Phylogenetic system is based on classifying organisms on the basis of descent from a common ancestor.It is based on the evolution of life and shows the genetic relationships among organisms.

Complete answer:
This system was given by adolf engler and prantl.Phylogeny is the evolutionary history of group of related organisms.It basically deals with the genetic relationships among the organisms.All the organisms belonging to the ancestral stock are taken in to consideration and their relations are established leading to the conclusion that they are evolutionary point of view related or not.There are many advantages to study the organism in point of view of evolution as you will know something very important feature of the organism(that was developed first in that organism)and evolutionary history too.This system does not include ranking among the organisms.

Hence option ‘A’ is the correct answer.

Note: Phylogeny generates trees called cladograms and cladistics is actually the study of descendants only.This classification dominates all other classification systems like that of linnaeus who considered only the gross superficial characters or only the morphology of a plant species.John hutchinson proposed this system in to his book 'families of flowering plants.'