Biology · Kingdom Prokaryote
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The first that oxygenated the atmosphere were:
- A
Cyanobacteria
- B
Phototrophic organisms
- C
Anaerobic organisms
- D
All of the above
It is a fact that the first organisms that oxygenated the atmosphere were cyanobacteria
Bacteria that are capable of photosynthesis are called Cyanobacteria. They are prokaryotic and represent the earliest known form of life on the earth.
Phototrophs are organisms that carry out photon capture to produce complex organic compounds and acquire energy. They use the energy from light to carry out various cellular metabolic processes. Algae, plants and bacteria are the prime examples.
An anaerobic organism or anaerobe is any organism that does not require molecular oxygen for growth. It may react negatively or even die if free oxygen is present.
this option is incorrect.
Tagged under Biology · Kingdom Prokaryote · 2017