The correct sequence of taxonomic categories isa)class-phylum-order-fa...
Understanding Taxonomic Hierarchy
Taxonomy is the science of classification of living organisms. It uses a hierarchical system to categorize species based on shared characteristics. The correct sequence of taxonomic categories is crucial for biological classification.
Taxonomic Categories Explained
The primary taxonomic ranks include:
- Domain
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
Correct Sequence: Phylum-Class-Order-Family-Genus-Species
The correct answer is option D: Phylum-Class-Order-Family-Genus-Species. Here’s why:
- Phylum: This is a higher-level category that groups organisms based on major body plans and organizational features. For example, Chordata is a phylum that includes all animals with a notochord.
- Class: Within a phylum, organisms are further divided into classes that share more specific characteristics. For instance, Mammalia is a class within Chordata.
- Order: Each class is divided into orders. For example, within Mammalia, there is the order Carnivora, which includes carnivorous mammals.
- Family: Orders are subdivided into families. For instance, within Carnivora, the family Felidae includes all cats.
- Genus: Families are further divided into genera (plural of genus). For example, the genus Panthera includes big cats like lions and tigers.
- Species: The most specific category, which identifies individual organisms that can interbreed. For example, Panthera leo refers to the lion.
Conclusion
Understanding this hierarchy is essential for students preparing for exams like NEET, as it forms the foundation for classifying and understanding biodiversity.
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