In a comparative study, some unicellular organisms obtained from hay infusion have a flexible shape and engulf food particles, while other organisms have a rigid outer covering and are green in colour. Which of the following conclusions best explains these observed differences?
Subject: General Awareness | Topic: Science | Difficulty: MEDIUM
Options
- (A) All protozoa are prokaryotic
- (B) Chlorophyll is absent in all of them
- (C) Protozoa differ in structure and nutrition
- (D) Monera have identical cell walls
Verified Answer
Option (C): Protozoa differ in structure and nutrition
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