Similar genera are grouped into a family, similar families into an order, similar orders into a class, similar classes into a phylum, finally similar phyla are placed in a kingdom. Such a classification is called

Options

A. Biological classification
B. Taxonomy
C. Hierarchical classification
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Classification Levels**: The question describes a systematic way of organizing living organisms based on their similarities. The levels mentioned are: genus, family, order, class, phylum, and kingdom.

2. **Identifying the Classification System**: The process of grouping organisms based on shared characteristics is known as biological classification. This involves arranging organisms into hierarchical categories.

3. **Defining Taxonomy**: Taxonomy is the branch of science that deals with the classification of organisms. It encompasses the principles of nomenclature, characterization, and identification.

4. **Explaining Hierarchical Classification**: The term "hierarchical classification" refers to the organization of living organisms into ranks or levels, with each level representing a different degree of similarity. The hierarchy starts from the broadest category (kingdom) down to the most specific (species).

5. **Conclusion**: Given the context of the question, the classification system described is known as hierarchical classification. Therefore, the answer to the question is that this type of classification is called hierarchical classification.

**Final Answer**: Hierarchical classification.

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