In His Original Studies of Digestion, Pavlov Placed Food on a Dog's

question 141

Multiple Choice

In his original studies of digestion, Pavlov placed food on a dog's tongue to make the dog salivate. In this situation, the dog's salivating was a(n) :

• A)conditioned stimulus (CS).
• B)unconditioned response (UCR).
• C)conditioned response (CR).
• D)operant response (OR).

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Definitions:

Excretion

The process of removing metabolic waste products and other non-useful materials from an organism to maintain internal homeostasis.

Tubular Reabsorption

The process by which the kidneys reclaim water and solutes from the tubular fluid and return them to the blood.

Nephron

The functional unit of the kidney, responsible for filtering blood and forming urine through processes of filtration, reabsorption, and secretion.

Filtered Molecules

Substances that have passed through a filtering process, often referring to molecules separated based on size or charge, especially in biological and chemical contexts.