Question

Stromatolites are single celled prokaryotic bacteria cells.
True
False

Answer 1

Answer: True


Explanation; Prokaryotes are all single-celled organisms that lack membrane-enclosed nucleus and organelles. Also Cyanobacteria are prokaryotic cells (the simplest form of modern carbon-based life) in that they lack a DNA-packaging nucleus. Bacteria, including the photosynthetic cyanobacteria, were the only form of life on Earth for the first 2 billion years that life existed on Earth.

Answer 2

True. They were originally formed by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe that lives today in a wide range of environments ranging from the shallow shelf to lakes, rivers, and even soils. It is a prokaryote, with no nucleus.