Cyanobacteria seems to have evolved relatively early in Earth's history. What happened to the oxygen the earliest cyanobacteria released?

It allowed for more complex life forms to evolve.

It reacted with iron in the Earth's crust.

It formed the ozone layer.

It built up in the atmosphere.

Question

Brooklyn Mendez

Biology

17 September, 17:45

Cyanobacteria seems to have evolved relatively early in Earth's history. What happened to the oxygen the earliest cyanobacteria released?

It allowed for more complex life forms to evolve.

It reacted with iron in the Earth's crust.

It formed the ozone layer.

It built up in the atmosphere.

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Answers (1)

Know the Answer?

Reagan Lynn · Answer 1

Answer: Option A

Explanation:

Cyanobacteria were the first organism to produce the most important component of life that is oxygen.

The atmosphere earlier deprived of oxygen due to which there were no multi cellular organism at that time.

Due to the evolution of cyanobacteria there is an evolution of more complex life forms on earth. Multicelluar organism are more complex than unicellular organism that evolved after cyanobacteria.

Cyanobacteria seems to have evolved relatively early in Earth's history. What happened to the oxygen the earliest cyanobacteria released?It allowed for more complex life forms to evolve.It reacted with iron in the Earth's crust.It formed the ozone layer.It built up in the atmosphere.

Cyanobacteria seems to have evolved relatively early in Earth's history. What happened to the oxygen the earliest cyanobacteria released?

It allowed for more complex life forms to evolve.

It reacted with iron in the Earth's crust.

It formed the ozone layer.

It built up in the atmosphere.