Select the 2 correct statements that describe cyanobacteria.(1 point)

Question

Responses

Cyanobacteria lived in the ocean
Cyanobacteria lived in the ocean

Cyanobacteria were the first photosynthesizing organisms
Cyanobacteria were the first photosynthesizing organisms

Cyanobacteria have complex cells containing a nucleus
Cyanobacteria have complex cells containing a nucleus

Cyanobacteria decreased the levels of oxygen in the atmosphere
Cyanobacteria decreased the levels of oxygen in the atmosphere

Answer 1

The two correct statements that describe cyanobacteria are:

1. Cyanobacteria lived in the ocean
2. Cyanobacteria were the first photosynthesizing organisms

Cyanobacteria are known to be some of the earliest life forms on Earth and were significant in the development of oxygen in the atmosphere through photosynthesis. They are prokaryotic organisms, meaning they do not contain a nucleus, and they played a crucial role in increasing oxygen levels rather than decreasing them.