Examlex
Explain why random assignment is important for inferring cause and effect in experimental research.
Tumor
An abnormal growth of tissue that can be either benign (non-cancerous) or malignant (cancerous).
Basal Metabolic
Refers to the rate at which the body uses energy while at rest to maintain vital functions such as breathing and keeping warm; also known as basal metabolic rate (BMR).
Ultraviolet Rays
A form of electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays, capable of producing sunburn and contributing to skin cancer.
Nervous System
An extensive network of specialized cells that coordinates actions and sensory information by transmitting signals to and from different parts of the body.
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