Examlex
Explain the potential difficulties of using a natural experiment to test a hypothesis.
Extracellular Material
Substances found outside cells, including proteins, salts, and water, that provide structural and biochemical support to surrounding cells.
Highly Vascular
Describes tissues that contain many blood vessels, indicating a rich blood supply.
Zero Gravity
A condition of apparent weightlessness experienced when no net gravitational forces are acting on an object.
Smooth Muscle
A type of muscle tissue that is not under conscious control, found in the walls of internal organs such as the stomach and intestines.
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