Oxygenic photoautotroph without a nucleus
Bacteroides |
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cyanobacteria |
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algae |
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Lactobacillales |
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oomycote |
Answer :
Cyanobacteria.
Discussion and explanation :
Bacteroides - Are obligate anaerobic heterotrophic bacteria.
Cyanobacteria (also referred as blue green algae): These prokaryotes (lacking nucleus) have thylakoids in their cytoplasm where photosynthesis takes place. As a result of photosynthesis these bacteria can prepare their own food (autotrophs) and also generate oxygen (oxygenic).
Algae are eukaryotes and contain nucleus.
Lactobacillus does fermentation to produce lactic acid without any need of light. It is prokaryote and lack nucleus.
Oomycota are fungus like filamentous microorganisms which are heterotrophs.
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