What is the basis of Phylogenetic classification systems

Explanation

### Step-by-Step Text Solution:

1. **Understanding Phylogenetic Classification**:
- Phylogenetic classification systems are designed to organize living organisms based on their evolutionary history and relationships.

2. **Basis of Phylogenetic Classification**:
- The primary basis of phylogenetic classification is **evolutionary ancestry**. This means that organisms are classified according to their common ancestors and the evolutionary pathways that led to their current forms.

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