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A rich person does not experience scarcity.
Spinal Cord
A long, thin, tubular structure made up of nervous tissue, which extends from the brain and is encased in the vertebral column.
Respiratory System
The biological system in animals consisting of specific organs and structures used for gas exchange between the organism and its environment.
Mesoderm
The middle layer of an embryo in early development, giving rise to muscles, bones, and the circulatory system.
Muscle
Tissues in the body that can contract, allowing movement of body parts and organs.
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