Examlex
A tree casts a shadow ft long when a vertical rod 4 ft high casts a shadow 2 ft long. (See Illustration.) How tall is the tree?
Norepinephrine
A neurotransmitter and hormone important in the body's stress response that plays a role in mood regulation, alertness, and blood pressure.
Blood Pressure
The force exerted by circulating blood on the walls of blood vessels, often measured for diagnostic purposes as it relates to health.
Biological Psychologist
A scientist who focuses on understanding how biological processes influence the mind and behavior, often exploring areas such as neuroscience, genetics, and physiology.
Chemical Changes
Transformations in matter that result in the formation of new chemical substances, involving a change in chemical composition.
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