Which microorganism has the ability to produce single-cell protein by harnessing sunlight as an energy source?
Methylococcus capsulatus
Spirulina platensis
Candida utilis
Pichia pastoris
Spirulina platensis is a type of microalgae that is capable of photosynthesis, meaning it can produce SCP using sunlight as an energy source. Therefore, option 2 is the correct answer.