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

Responses

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

Cyanobacteria lived in the ocean
Cyanobacteria lived in the ocean

Cyanobacteria were the first photosynthesizing organism

1 answer

The two correct statements that describe cyanobacteria are:

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

Cyanobacteria are photosynthetic prokaryotes found in various environments, including oceans, and they played a crucial role in the oxygenation of the Earth's atmosphere through their photosynthetic activities. They do not contain a nucleus, as they are prokaryotic organisms.