A Prerequisite for the Survival of Life on Land Was

question 22

Multiple Choice

A prerequisite for the survival of life on land was the accumulation of a protective layer of

• A) O₂ in the atmosphere.
• B) CO₂ in the atmosphere.
• C) water vapor in the atmosphere.
• D) ozone in the atmosphere.
• E) bacteria in the soil.

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Definitions:

Thalamus

A major part of the brain situated at the top of the brainstem, serving as a key relay station for sensory signals except for the sense of smell.

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood, controlling basic emotions and drives.

Cognition

encompasses all aspects of intellectual functions and processes related to knowing, including perceiving, recognizing, conceiving, and reasoning.

Emotions And Memories

The interlinked aspects of how emotions significantly influence the creation, storage, and retrieval of memories.