What Role Did Cyanobacteria Play in Shaping Earth's Environment

question 33

Multiple Choice

What role did cyanobacteria play in shaping Earth's environment?

• A) They are single-celled organisms that are detritivores.
• B) They produced oxygen, which led to changes in Earth's atmosphere.
• C) They evolved into the first plants that colonized land.
• D) They are the ancestral form of all life on Earth.

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Definitions:

Informed Consent

The process by which a participant voluntarily confirms their willingness to participate in a particular study, after having been informed of all aspects of the trial that might affect their decision to participate.

Mental Patients

Individuals who are receiving treatment for mental illnesses or psychological disorders.

Refuse

To express a deliberate intention not to accept, submit to, believe, or make use of something.

Mental Hospital

A healthcare institution specializing in the treatment of serious mental illnesses.