Question:- The prokaryotic cells that built stromatolites are classified as _____.
Answer: “cyanobacteria”.
Cyanobacteria also called blue-green algae are one of the simplest types of phototrophic bacteria that are considered to be among the first life forms on Earth. Therefore, they contribute to the formation of early Earth’s atmosphere by manufacturing oxygen through photosynthesis. These are sedimentary structures in which the middle section is made up of men and women that belong to other sedimentary substances also the top layer is composed of other sedimentary structures and the bottom layer which is today referred to as stromatolite was colonized by cyanogenic bacteria for billions of years. These are some of the oldest formations on our planet, which bear evidence of life as early as over 3. 5 billion years ago. Due to mature photosynthesis it together with the unique metabolic processes of cyanobacteria framed stunning formations, namely stromatolites.