- A prokaryotes
- B eukaryotes
- C fungi
- D green plants
Correct answer: A. prokaryotes
Explanation: Prokaryotes (like bacteria) have no membrane-bound nucleus.
Concept context
Whittaker's five kingdom system covering Monera, Protista, Fungi, plus viruses, viroids, and lichens. A foundational NEET chapter on how living organisms are grouped.