Increase in the Population of Photosynthetic Bacteria Using the Oxygen-Releasing

question 98

Multiple Choice

Increase in the population of photosynthetic bacteria using the oxygen-releasing pathway led to an increase in the oxygen levels in the seas and air.What was (were) the major consequence(s) of that change?

• A) I only
• B) II only
• C) I and II
• D) I and III
• E) I, II, and III

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Definitions:

Obsessive-Compulsive Disorder

A mental health disorder characterized by repetitive, unwanted thoughts (obsessions) and irrational, excessive urges to do certain actions (compulsions).

Schizophrenia

A chronic and severe mental disorder affecting how a person thinks, feels, and behaves.

Anorexia

This disorder involves having an unusually low body mass, an extreme anxiety about putting on weight, and a twisted vision of one's body weight or configuration.

Lanugo

Fine, soft hair, especially that which covers the body and limbs of a human fetus or newborn.