Which Is the Most Unique Characteristic of Birds

question 111

Multiple Choice

Which is the most unique characteristic of birds?

• A) The scales on their legs
• B) Their ability to lay eggs that will not dry out
• C) The presence of feathers
• D) The enormous amount of parental care they provide their young
• E) The presence of beaks

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Definitions:

Chronic Stressors

Inescapable, day-to-day situations or conditions that cause stress.

Stress

A physical or emotional response to demands or pressures, which can stem from various aspects of life including work, relationships, or financial troubles.

Hans Selye

A Hungarian-Canadian endocrinologist known for his research on the response of organisms to stress.

Stress Types

Varieties of stress categorized typically by cause, duration, or effect on an individual, such as acute, chronic, or eustress.