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How can agricultural irrigation practices be altered to decrease loss of fresh water?
Biological Clock
An internal mechanism that regulates bodily rhythms and cycles, such as sleep and wakefulness, on a roughly 24-hour cycle.
Pineal Gland
A small endocrine gland in the brain that produces the hormone melatonin, which regulates sleep and wakefulness.
Melatonin
A hormone produced by the pineal gland that regulates sleep-wake cycles and is influenced by the presence of light.
Biological Clock
An internal mechanism in organisms that controls the cycle of biological processes and behaviors in a roughly 24-hour cycle.
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