Question

Do any varieties of cyanobacteria living today produce stromatolites?
A: Yes
B: No

Answer 1

Yes. I just looked it up

Answer 2

Answer: yes

Step-by-step explanation:

Stromatolites, also known as layered rocks, form in shallow waters when biofilms of living microorganisms, like cyanobacteria, trap sediment. Most stromatolites grow in extremely salty lagoons or bays, in places like Australia, Brazil, Mexico and the Bahamas.May 30, 2013