Why is the two-kingdom classification inadequate ?

Explanation

### Step-by-Step Solution:

1. **Introduction to Two-Kingdom Classification**:
- The two-kingdom classification system was proposed by Carolus Linnaeus. It divides all living organisms into two main categories: Plantae (plants) and Animalia (animals).

2. **Lack of Differentiation Between Prokaryotes and Eukaryotes**:
- One of the major inadequacies of this classification is that it does not differentiate between prokaryotic organisms (like bacteria) and eukaryotic organisms (like plants and animals). Prokaryotes lack a defined nucleus and membrane-bound organelles, while eukaryotes have these structures.

...