Which type of organism does not contain a membrane-bound nucleus?

• A. Plants
• B. Fungi
• C. Eukaryotes
• D. Prokaryotes

Answer: (D)

Verified step by step guidance

1. Understand the difference between prokaryotic and eukaryotic cells. Eukaryotic cells have a membrane-bound nucleus, while prokaryotic cells do not.
2. Identify the types of organisms listed: Plants and Fungi are eukaryotes, meaning they have membrane-bound nuclei.
3. Recognize that the term 'Eukaryotes' itself refers to organisms with membrane-bound nuclei.
4. Recall that prokaryotes, such as bacteria and archaea, lack a membrane-bound nucleus, which distinguishes them from eukaryotes.
5. Conclude that the correct answer is 'Prokaryotes' because they do not contain a membrane-bound nucleus.