(Table: Competitive Firm) the Marginal Cost of the Fifth Unitof

question 27

Multiple Choice

(Table: Competitive Firm) The marginal cost of the fifth unitof output is:

• A)$70.
• B)$90.
• C)$450.
• D)$300.

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Definitions:

Semipermeable Membrane

A membrane that allows the passage of certain small molecules or ions but blocks others.

Concentration Gradient

A variation in the concentration of a substance across a distance, often leading to the diffusion of substances from an area of higher concentration to an area of lower concentration.

Diffusion

Spontaneous spreading of molecules or atoms through a fluid or gas.

Indigestible Substances

Materials that cannot be broken down and absorbed by the digestive enzymes and system of an organism, often passing through the system largely unchanged.