Assertion: Complexity of classification increases from kingdom to species
Reason. Common characters increase from kingdom to species

Options

A. both are true with reason being correct explanation
B. both are true but reason is not correct explanation
C. assertion true but reason is wrong
D. both are wrong

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Complexity of classification increases from kingdom to species." This means that as we move from the broader classification (kingdom) to the more specific one (species), the complexity of the organisms' characteristics increases.

2. **Taxonomical Hierarchy**: In taxonomy, organisms are classified into different groups known as taxa. The hierarchy starts from the broadest category, which is the kingdom, and narrows down to species. The order is as follows: Kingdom > Phylum > Class > Order > Family > Genus > Species.

3. **Complexity of Characters**: As we move down this hierarchy from kingdom to species, the complexity of the organisms' characteristics increases. For example, in the kingdom Animalia, there are organisms with simple structures (like sponges in the phylum Porifera) compared to humans (Homo sapiens) which have complex organ systems.

4. **Understanding the Reason**: The reason states that "Common characters increase from kingdom to species." This means that as we move from kingdom to species, the number of shared characteristics among organisms increases.

5. **Analyzing the Reason**: While it is true that species share more common characteristics with each other than with organisms in different kingdoms, the reason does not correctly explain the assertion. The assertion focuses on the complexity of classification, while the reason discusses common characters, which is a different aspect of classification.

6. **Conclusion**: Both the assertion and reason are true statements. However, the reason does not provide the correct explanation for the assertion. Therefore, the correct answer is that both statements are true, but the reason is not the correct explanation for the assertion.

**Final Answer**: Both the assertion and reason are true, but the reason is not the correct explanation for the assertion.

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