Which is correct hierarchical sequence?

Options

A. Phylum, class, order, family
B. Phylum, division, family, class
C. Genus, species, order, family
D. Division, order, class, genus

Answer

To determine the correct hierarchical sequence of taxonomic categories, we need to understand the classification system used in biology. The taxonomic hierarchy is a system that organizes living organisms into different ranks based on their similarities and differences.

### Step-by-Step Solution:

1. **Understand Taxonomic Hierarchy**: The taxonomic hierarchy is a system used to classify living organisms into various categories. The main categories include domain, kingdom, phylum, class, order, family, genus, and species.

2. **List the Taxonomic Ranks**: The correct order of these ranks from highest to lowest is:
- Domain
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species

3. **Identify the Correct Sequence**: We need to find the correct sequence among the given options. The correct hierarchical sequence should follow the order mentioned above.

4. **Evaluate the Options**:
- Option 1: Phylum, Class, Order, Family, Genus, Species
- This option correctly follows the sequence from Phylum down to Species.
- Other options may not follow this order.

5. **Conclusion**: Based on the analysis, the correct hierarchical sequence is:
- Phylum → Class → Order → Family → Genus → Species

### Final Answer:
The correct hierarchical sequence is: **Phylum → Class → Order → Family → Genus → Species** (Option 1).

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