Your answer would be D, Photosynthesis
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Bacteria have been the very first organisms to live on earth in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.
Answer:
The Scientific Adam refers to the most recent common ancestor of all males, given that some scientists theorize that all currently living men share the same mutations in their Y chromosome, proving that one man fathered all of humanity.
Identifying the Scientific Adam would be very important for both science and religion, as it would provide a bridge between these two often collided fields. The Scientific Adam proves the existence of the biblical Adam.
It is called the intensity.You are welcome.