The systematic arrangement of taxa is called :–

Options

A. Key
B. Taxonomy
C. Geneology
D. Hierarchy

Answer

**Step-by-Step Solution:**

1. **Understanding Taxa**: Taxa refer to groups of organisms that are classified together based on shared characteristics. Examples of taxa include species, genus, family, etc.

2. **Definition of Systematic Arrangement**: The systematic arrangement of taxa involves organizing these groups in a structured manner, which helps in understanding the relationships and characteristics of different organisms.

3. **Identifying Key Terms**: The terms "Key Taxonomy," "Genealogy," and "Hierarchy" are mentioned as possible answers. However, we need to determine which term specifically refers to the systematic arrangement of taxa.

4. **Exploring the Correct Term**: Among the options provided, "Hierarchy" is the term that is widely recognized in biological classification. Taxonomic hierarchy refers to the levels of classification, which include Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

5. **Conclusion**: Therefore, the systematic arrangement of taxa is best described as "Hierarchy."

6. **Final Answer**: The answer is option 4, Hierarchy.

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