Assertion: In higher category there is great difficulty of determining the relationship to other taxa at the same level.
Reason: In higher-taxa there are less characteristics that the members within the tax share.

Options

A. If both assertion and Reason are true and the reason is a correct explanation of the assertion.
B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion and Reason are False.

Answer

To analyze the assertion and reason provided in the question, we can break down the solution into the following steps:

### Step 1: Understand the Assertion
The assertion states that "In higher category there is great difficulty of determining the relationship to other taxa at the same level." This means that when we look at higher taxonomic categories (like kingdoms or phyla), it becomes challenging to identify how these categories relate to one another.

### Step 2: Understand the Reason
The reason provided is "In higher taxa there are less characteristics that the members within the taxa share." This implies that as we move up the taxonomic hierarchy, the number of shared characteristics among members of the same taxon decreases.

### Step 3: Analyze the Relationship Between Assertion and Reason
To determine if the reason supports the assertion, we need to consider how shared characteristics affect our ability to determine relationships. At higher taxonomic levels, such as kingdoms, the organisms within those groups (e.g., plants vs. animals) have fewer common characteristics compared to organisms at lower levels (e.g., species within a genus). This lack of shared characteristics makes it difficult to establish relationships between different taxa at the same higher level.

### Step 4: Provide Examples
For instance, consider the plant kingdom and the animal kingdom. These two kingdoms have very few characteristics in common, making it difficult to ascertain their evolutionary relationships. Conversely, if we compare two species within the same genus, like Solanum tuberosum (potato) and Solanum lycopersicum (tomato), they share many characteristics, making it easier to determine their relationship.

### Step 5: Conclusion
Both the assertion and the reason are correct. The assertion is true because it is indeed difficult to determine relationships at higher taxonomic levels. The reason is also true, as it explains that the decrease in shared characteristics at higher levels leads to this difficulty.

### Final Answer
Both the assertion and reason are true, and the reason is a correct explanation of the assertion.

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