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

Question

Responses

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

Cyanobacteria lived in the ocean
Cyanobacteria lived in the ocean

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

Cyanobacteria were the first photosynthesizing organisms

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 for their role in producing oxygen through photosynthesis and were among the earliest organisms to perform this process. They primarily inhabit marine environments, among other ecosystems.