During Which Epoch Did the First Major Extinction Occur

question 16

Multiple Choice

During which epoch did the first major extinction occur?

• A)Eocene
• B)Oligocene
• C)Miocene
• D)Pleistocene
• E)Ordovician

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Definitions:

Surge of Excitement

An intense, sudden feeling of exhilaration or euphoria, often experienced in response to a stimulating event or anticipation of one.

Unconditioned Stimulus

In classical conditioning, an unconditioned stimulus is something that naturally and automatically triggers a response without any learning needed.

Conditioned Stimulus

A formerly neutral signal that, once linked with the unconditioned stimulus, ultimately induces a conditioned reaction.

Unlearned Reaction

An innate response or reflex that is not acquired or learned through experience but is naturally present from birth.