Classify the following:
  
Answer variants:
The photosynthetic efficiency of these plants is comparatively low due to their high rate of photorespiration.
The Calvin cycle and light-dependent reactions are physically segregated in these plants.
During the day, these plants perform photosynthesis without the opening of their stomata.
 
1. C3 plants:
 
2. C4 plants:
 
3. CAM plants: