Correct option: 3
Explanation: Photosynthetic bacteria donot have chlorophyll to absorb light. Instead they have bacteriochlorophyll, which can absorb short wavelengths of light than the chlorophyll.
Correct option: 3
Explanation: Photosynthetic bacteria donot have chlorophyll to absorb light. Instead they have bacteriochlorophyll, which can absorb short wavelengths of light than the chlorophyll.