Which of the Following Organisms First Introduced Oxygen into Earth's

question 50

Multiple Choice

Which of the following organisms first introduced oxygen into Earth's atmosphere?

• A)green algae
• B)cyanobacteria
• C)early protozoans
• D)plants

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Definitions:

Respiratory Acidosis

A medical condition wherein the lungs cannot remove all of the carbon dioxide the body produces, leading to a disturbed acid-base balance.

Arterial Blood Gases

A test that measures the levels of oxygen and carbon dioxide in the arterial blood to assess lung function and how well gases are being exchanged in the body.

Metabolic Acidosis

A medical condition characterized by an increase in acidity in the blood and body tissues, often due to kidney disease, diabetes, or poisoning.

Metabolic Acidosis

A condition characterized by an imbalance in the body's pH levels, resulting in the blood becoming too acidic, often due to kidney disease or diabetic ketoacidosis.