Question

According to evolutionary theory, the cell on the right appeared first. _________________ were among the first photosynthetic forms of this organism.

Answer 1

Cyanobacteria, is the answer...........

:-D

Answer 2

cyanobacteria

Step-by-step explanation:

Cyanobacteria are considered one of the first photosynthetic life forms on the planet. They are estimated to have appeared approximately three billion years ago. Given the date of fossils that prove the existence of this organism in primitive times, it is believed that cyanobacteria were the main responsible for releasing oxygen in our atmosphere, making the earth a habitable planet.