Select the incorrect statement:-

Options

A. Anything less then a complete structure of all cells does not ensure independent living
B. Anton Von Leeuwenhoek first saw and described a living cell
C. Robert Brown discovered cell
D. Cell is the basic structur and functional unit of all organisms

Answer

To solve the question of selecting the incorrect statement, we will analyze each of the provided statements one by one.

### Step 1: Analyze the First Statement
The first statement claims that "anything less than a complete structure of a whole cell does not ensure independent living."
- **Analysis**: This statement is correct because a complete cell is necessary for independent living. Cells are the basic units of life, and anything less than a complete cell structure cannot function independently.

**Hint**: Consider the definition of a cell and its role in living organisms.

### Step 2: Analyze the Second Statement
The second statement mentions "Anton van Leeuwenhoek described living cells."
- **Analysis**: This statement is also correct. Anton van Leeuwenhoek is known for his work in microscopy and was the first to observe and describe living cells, particularly bacteria and protozoa.

**Hint**: Recall the contributions of Anton van Leeuwenhoek to microbiology.

### Step 3: Analyze the Third Statement
The third statement states, "Robert Brown discovered the cell."
- **Analysis**: This statement is incorrect. Robert Brown is known for discovering the nucleus, not the cell itself. The cell theory was developed later, and the term "cell" was coined by Robert Hooke.

**Hint**: Think about the historical figures in cell biology and their specific contributions.

### Step 4: Analyze the Fourth Statement
The fourth statement says, "Cell is the basic structure and fundamental unit of organism."
- **Analysis**: This statement is correct. Cells are indeed the basic structural and functional units of all living organisms.

**Hint**: Reflect on the fundamental concepts of cell theory.

### Conclusion
After analyzing all the statements, the incorrect statement is the third one: "Robert Brown discovered the cell."

### Final Answer
The incorrect statement is: "Robert Brown discovered the cell."