Examlex
A biologist is studying how pollution affects algal growth and snail populations in a portion of Lake Erie. What level of organization is she studying?
Drive
An internal motivational state created by physiological or psychological needs, compelling an individual towards specific behaviors or goal attainment.
Deficiency
A lack or shortage of something necessary, often referring to a scarcity of vital nutritional elements or vitamins in the body.
Need
A requirement for survival or achieving a specific goal.
Goal
An objective or desired outcome that a person aims to achieve.
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