Feathers in Birds Appear to Have First Evolved for Insulation

question 5

Multiple Choice

Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces.This switch in function is an example of a(n) ________.

• A)paedomorphosis
• B)an analogy
• C)an adaptation
• D)exaptation

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Definitions:

Limbic System

An intricate network of nerves within the brain, responsible for managing emotions including pleasure and fear, alongside instincts and mood fluctuations.

Decreases

A reduction or a decline in the size, quantity, or intensity of something.

Hippocampus

A critical part of the brain in humans and vertebrates, essential for creating memories and navigating space.

Neural Cells

Specialized cells in the nervous system that function to process and transmit information through electrical and chemical signals.