Which of the following pairs is of unicellular algae?
Chlorella and Spirulina
The correct option is B.
Explanation of correct option:
Explanation of incorrect options:
Option A:
Option C:
Laminaria and Sargassum are multicellular algae.
Option D:
Gelidium and Gracilaria are multicellular algae.
Final answer: Chlorella and Spirulina are pairs of unicellular algae.