Question

Phylogenetic system of classification is based on

• A. Evolutionary relationships
• B. Morphological features
• C. Chemical constituents
• D. Floral characters

Answer 1

The correct option is A Evolutionary relationships

• Phylogenetic system of classification is based on evolutionary ancestry and generates trees called cladograms. Cladistics also identifies clades, which are group of organisms that include an ancestor species.
• Classifying organisms on the basis of descent from a common ancestor is called phylogenetic classification.
• Phylogenetic trees come about through successive events of speciation, in which one species gives rise to two. Phylogenetic relationships refers to the relative times in the past that species shared common ancestors.

So the correct option is 'Evolutionary relationships'.