Examlex
Biologists use the term ________ to refer to the weight of organisms per unit area.
Open-Heart Surgery
A type of surgery where the chest is opened and surgery is performed on the muscles, valves, or arteries of the heart.
Death Rates
A measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time.
Smoking
The act of inhaling and exhaling the smoke of burning plant material, especially tobacco, often considered a health risk.
Social Support System
A network of family, friends, colleagues, and others who provide emotional, informational, and practical help.
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