Darwin's Evidence That Evolution Occurs Included

question 44

Multiple Choice

Darwin's evidence that evolution occurs included:

• A)the existence of fossils that closely resembled living specimens
• B)a distinctive distribution of plants and animals in lands with similar climates that were not physically connected
• C)unique but similar species on several nearby islands
• D)All of these were Darwin's evidence for evolution.

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Definitions:

Ghrelin

A hormone produced by the stomach that stimulates appetite and signals hunger to the brain.

Melatonin

A hormone produced by the pineal gland in the brain, primarily responsible for regulating sleep-wake cycles.

Leptin

A hormone produced by fat cells that helps to regulate energy balance by inhibiting hunger, which in turn diminishes fat storage in adipocytes.

Serotonin

A neurotransmitter in the brain that plays a key role in stabilizing mood, feelings of well-being, and happiness.