What Is the Single Unique Characteristic That Distinguishes Extant Birds

question 30

Multiple Choice

What is the single unique characteristic that distinguishes extant birds from other extant vertebrates?

• A) endothermy
• B) feathers
• C) an amniotic egg
• D) flight
• E) a four-chambered heart

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Definitions:

Development

The process of growth or progression through successive phases, typically used in the context of physical, psychological, or social changes over time.

Neurotic Needs

Psychological needs that arise from attempts to manage stress and anxiety, often leading to unhealthy or maladaptive behaviors.

Animus

In Jungian psychology, the animus represents the masculine aspect of a woman's unconscious mind, as opposed to anima, which represents femininity in men.

Conscious Conflict

A psychological struggle emanating from incompatible desires or motivations within one's awareness.