Taxonomic categories/taxonomic groups are distinct biological entities and not merely morphological aggregates. (True/False)

Answer

To determine whether the statement "Taxonomic categories/taxonomic groups are distinct biological entities and not merely morphological aggregates" is true or false, we can analyze the concept of taxonomic classification step by step.

### Step-by-Step Solution:

1. **Understanding Taxonomy**: Taxonomy is the science of classification of living organisms. It involves grouping organisms based on shared characteristics.

2. **Taxonomic Categories**: Taxonomic categories (or ranks) include levels such as domain, kingdom, phylum, class, order, family, genus, and species. Each of these categories groups organisms that share certain traits.

3. **Morphological Characters**: Morphological characters refer to the physical traits of organisms, such as shape, size, and structure. Traditionally, taxonomy has relied heavily on these traits for classification.

4. **Beyond Morphology**: While morphological characters are important, taxonomic groups also consider other factors, such as genetic, biochemical, and ecological characteristics. This means that classifications are not solely based on physical appearance.

5. **Unique Features of Taxonomic Groups**: Each taxonomic group has unique biological features that distinguish it from others. For example:
- Humans belong to a category where the brain is highly developed.
- The phylum Arthropoda includes organisms with segmented bodies and jointed appendages.

6. **Conclusion**: Since taxonomic categories are based on a combination of morphological traits and unique biological characteristics, the statement is **True**. Taxonomic groups are indeed distinct biological entities and not merely morphological aggregates.

### Final Answer:
**True**

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