Question:
An approach to biological classification of fishes based on phylogenetic relationship is known as
An approach to biological classification of fishes based on phylogenetic relationship is known as
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Classification Paradigms:
Cladistics = Evolutionary PHYLOGENETIC relationships (Synapomorphies).
Phenetics = Overall morphological similarity.
Meristics = Numerical anatomical counts.
Cladistics = Evolutionary PHYLOGENETIC relationships (Synapomorphies).
Phenetics = Overall morphological similarity.
Meristics = Numerical anatomical counts.
Updated On: Sep 7, 2026
- Meristics
- Phenetic
- Taxonomy
- Cladistics
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Systematics and evolutionary taxonomy: phylogenetic systematics (cladistics) groups taxa strictly based on shared derived homologous characters (synapomorphies) reflecting common ancestry.
Step 2: Detailed Explanation:
Approaches to biological classification:
1. Cladistics (Phylogenetic Systematics Hennigian Systematics) (D): An evolutionary classification method that reconstructs genealogical and phylogenetic relationships based on shared derived character states (synapomorphies), generating branching cladograms to depict monophyletic clades.
2. Phenetics (Numerical Taxonomy): Classifies organisms strictly on overall morphological similarity regardless of evolutionary ancestry.
3. Meristics: Counting countable morphological features (fin rays, scales, vertebrae).
Step 3: Final Answer:
Hence, classification based on phylogenetic relationships is Cladistics, matching option (D).
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