Examlex
The epidermis (outer layer of the skin) needs to be tough and resistant to shearing and stretching. The type of intercellular junction best suited for this need is a(n) ________.
Dopamine
A neurotransmitter involved in controlling movement and the reward centers in the brain.
Reward System
A group of neural structures associated with pleasure, motivation, and reinforcement learning, fundamentally influencing human and animal behavior.
Addiction
A compulsive, chronic, physiological, or psychological need for a substance, behavior, or activity, leading to harmful consequences.
Immune System
The body's defense mechanism against foreign substances, infections, and diseases.
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