Why Was the Cambrian Explosion an Important Event in the Evolution

question 2

Multiple Choice

Why was the Cambrian Explosion an important event in the evolution of life on the Earth?

• A) This is when life first appeared on the Earth.
• B) This is when multicellular life forms evolved.
• C) This is when a great variety of invertebrates with shells appear in the fossil record.
• D) This is when plants and land animals first occurred.

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Definitions:

Uncertainty Threat

The feeling of discomfort or stress caused by not knowing or by having doubts about outcomes or intentions.

Uncertainty-Identity Theory

A theory that posits individuals join and strongly identify with groups to reduce uncertainty about themselves and the world.

Ambiguity

The presence of uncertainty or lack of clarity in information, meaning, or instructions.

Terror Management Theory

A social psychology concept suggesting that a major driving force of human behavior is the fear of mortality, leading individuals to seek symbolic or literal immortality through their actions and beliefs.