- A autotrophs
- B heterotrophs
- C parasites
- D saprophytes
Correct answer: A. autotrophs
Explanation: Autotrophs make their own food, e.g. by photosynthesis.
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.