This Substance Is Released as an Immediate Response to Stress

question 41

Multiple Choice

This substance is released as an immediate response to stress.

• A) Epinephrine
• B) Thyroxine
• C) Acetylcholine
• D) Cortisol

Understand the role of the suprachiasmatic nucleus in controlling the circadian rhythm.

Identify the characteristics and effects of REM sleep.

Recognize the sleep requirements across different age groups.

Describe the stages of sleep and their unique characteristics.

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Definitions:

Mass Extinction

A significant and widespread event in which a substantial proportion of Earth's species die out in a relatively short geological period.

Climate Change

Substantial changes in global or regional climate patterns, notably since the late 20th century, largely attributed to increased levels of atmospheric carbon dioxide produced by fossil fuels.

End-Permian Extinction

The largest mass extinction event in Earth's history, occurring around 252 million years ago and resulting in the extinction of a significant proportion of marine and terrestrial species.

UV-B Radiation

A portion of the ultraviolet spectrum with wavelengths from 280 to 315 nanometers, known for its biological effects, including DNA damage and vitamin D synthesis in skin.