Assertion: Rosa indica is a taxon and species is its category.
Reason: Taxon represents real biological objects while category is an abstract term representing a rank in cl assification.

Answer

To analyze the given assertion and reason, we can break down the information step by step:

### Step 1: Understanding the Assertion
- **Assertion**: "Rosa indica is a taxon and species is its category."
- **Explanation**: The term "taxon" refers to a group of one or more populations of organisms that form a unit. In this case, "Rosa indica" is indeed a taxon, specifically a species of rose. The term "species" is a category in the biological classification system, which is one of the ranks used to classify living organisms.

### Step 2: Understanding the Reason
- **Reason**: "Taxon represents real biological objects while category is an abstract term representing a rank in classification."
- **Explanation**: The statement is correct. A taxon (like "Rosa indica") refers to a specific group of organisms that can be observed and studied, making it a real biological entity. In contrast, "category" refers to the classification rank (like species, genus, family, etc.) and is an abstract concept used to organize these taxa into a hierarchical system.

### Step 3: Evaluating the Relationship Between Assertion and Reason
- The assertion states that "Rosa indica" is a taxon, and it correctly identifies "species" as a category within the classification system.
- The reason provides a valid explanation for the assertion by distinguishing between the tangible nature of taxa and the abstract nature of categories.

### Conclusion
- Both the assertion and the reason are correct, and the reason supports the assertion.

### Final Answer
- **Both the assertion and reason are true, and the reason correctly explains the assertion.**

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