Which of the following is the correct hierarchial sequence ?

Options

A. Phylum-Class-Order-Family
B. Genus-Species-Order-Family
C. Phylum-Division-Family-Class
D. Division-Order-Class-Genus

Answer

To determine the correct hierarchical sequence in biological classification, we need to understand the levels of classification from the highest to the lowest. Here’s the step-by-step solution:

### Step 1: Identify the Levels of Classification
The biological classification system is organized into a hierarchy of categories. The main levels, starting from the highest to the lowest, are:
1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species

### Step 2: Arrange the Levels in Order
According to the hierarchy:
- The highest rank is the **Kingdom**.
- The next level is **Phylum**.
- Following that is **Class**.
- Then comes **Order**.
- After Order, we have **Family**.
- Next is **Genus**.
- Finally, the lowest rank is **Species**.

### Step 3: Verify the Options
Now, we need to check the provided options to see which one follows the correct hierarchical order:
1. Phylum, Class, Order, Family
2. Genus, Species, Order, Family
3. Phylum, Division, Family, Class
4. Division, Order, Class, Genus

### Step 4: Identify the Correct Option
From our established hierarchy:
- The first option (Phylum, Class, Order, Family) is correct as it follows the sequence of classification.
- The other options do not follow the correct order.

### Conclusion
The correct hierarchical sequence is **Kingdom > Phylum > Class > Order > Family > Genus > Species**. Therefore, the correct answer from the options provided is **Phylum, Class, Order, Family**.

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