Which is incorrect about protobionts in abiogenic origin of life?

Options

A. They were partially isolate from surrounding
B. They could maintain an internal environment .
C. They were able to reproduce.
D. They could separate combination of molecules from the surroundings.

Answer

To determine which statement about protobionts in the abiogenic origin of life is incorrect, let's analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding Protobionts**:
- Protobionts are aggregates of abiotically produced organic molecules. They are not formed by living organisms but rather through abiotic processes. They are surrounded by a membrane or a membrane-like structure.

2. **Analyzing the Options**:
- **Option A**: "They were partially isolated from the surrounding."
- This statement is correct. Protobionts are indeed partially isolated from their environment due to their membrane structure.

- **Option B**: "They could maintain an internal environment."
- This statement is also correct. Protobionts can maintain an internal chemical environment, similar to living cells.

- **Option C**: "They were able to reproduce."
- This statement is correct as well. Protobionts exhibit properties similar to living organisms, including reproduction.

- **Option D**: "They could separate combinations of molecules from their surrounding."
- This statement is incorrect. Protobionts cannot completely separate combinations of molecules from their surroundings; they are only partially isolated and cannot selectively separate molecules.

3. **Conclusion**:
- The incorrect statement about protobionts is **Option D**: "They could separate combinations of molecules from their surrounding."

### Final Answer:
The incorrect statement about protobionts in the abiogenic origin of life is **Option D**.

---