It also contains green pigment, in addition they contain various yellowish carotenoids the blue pigment, red pigment, brown, yellow and black pigments. That is what i think.
Yellowish carotenoids and in some species the red pigment phycoerythrin.
Explanation:
The blue-green algae or cyanobacteria are photosynthetic and aquatic . There are different types of pigments present in the cyanobacteria. Chlorophyll, chlorophyll a and blue pigment phycobilin are the main pigments. In addition, there are other pigments also present like the yellowish pigment carotenoids and in few other species the red pigment phycoerythrin is present.
Photosynthesis and chemosynthesis are both processes by which organisms produce food; photosynthesis is powered by sunlight while chemosynthesis runs on chemical energy.
