Stromatolites are layered structures that may be produced by the activity of ____________.
A) dinosaurs
B) methanogens
C) cyanobacteria
D) green algae

Question

Quizplus · Accepted Answer

Stromatolites are primarily produced by the activity of cyanobacteria, which are photosynthetic bacteria. The layered structures are formed by the capture and binding of sediment by the sticky matrix produced by the cyanobacteria. While green algae may also produce similar structures, they are not typically associated with stromatolites. Similarly, dinosaurs played no role in the formation of stromatolites, while methanogens are not typically associated with this type of structure.

Stromatolites Are Layered Structures That May Be Produced by the Activity