Much of the Coal We Use Today Came from ______

question 11

Multiple Choice

Much of the coal we use today came from ______ that lived during the Carboniferous.

• A) gymnosperms
• B) mosses
• C) angiosperms
• D) seedless vascular plants

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Definitions:

Adrenalin

Also known as epinephrine, a hormone and medication which increases heart rate, muscle strength, blood pressure, and sugar metabolism, often in response to stress.

Circadian Cycle

A natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Cortisol

A steroid hormone produced by the adrenal glands, which plays a vital role in the body's response to stress.

Sleep-Wake Cycles

The natural, cyclic pattern of sleep and wakefulness in humans and other animals, governed by internal biological clocks and influenced by environmental factors.