Taxonomic hierarchy

Options

A. A list of biologists who worked on taxonomy
B. A group of taxonomists who decide the nomenclature rules
C. Stepwise arrangement of all categories for classification of plants and animals
D. Classification based only on evolutionary

Answer

**Step-by-Step Solution for Taxonomic Hierarchy**

1. **Understanding Taxonomy**: Taxonomy is the scientific discipline that involves the classification, naming, and identification of organisms. It provides a systematic framework for organizing biological diversity.

2. **Taxonomic Hierarchy**: The taxonomic hierarchy is a structured system that categorizes living organisms into different ranks or levels. The main ranks in this hierarchy are:
- **Kingdom**: The highest taxonomic rank. Organisms are classified into broad categories based on fundamental similarities.
- **Phylum**: The next level down from kingdom. It groups organisms based on major body plans and structural features. In plants, this level is referred to as "Division."
- **Class**: Within each phylum, organisms are further divided into classes.
- **Order**: Classes are divided into orders based on more specific similarities.
- **Family**: Orders are broken down into families, grouping organisms that are closely related.
- **Genus**: Families are further divided into genera (plural of genus), which include species that are very closely related.
- **Species**: The most specific level of classification, representing individual organisms that can breed and produce fertile offspring.

3. **Correct Answer Identification**: Among the options provided:
- A list of biologists who worked on taxonomy is not a definition of taxonomic hierarchy.
- A group of taxonomists who decide nomenclature rules does not accurately describe the hierarchy.
- The stepwise arrangement of all categories for classification of plants and animals correctly describes the taxonomic hierarchy.
- Classification based only on evolutionary relationships is incorrect, as taxonomy also considers other factors.

4. **Conclusion**: The correct answer is the option that states "stepwise arrangement of all categories for classification of plants and animals," as it accurately reflects the nature of taxonomic hierarchy.

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