To Account for Color Vision,Helmholtz Postulated the Existence Of

question 61

Multiple Choice

To account for color vision,Helmholtz postulated the existence of:

• A)three types of color receptors corresponding to three primary colors
• B)separate receptors for each wavelength in the visual spectrum
• C)one type of receptor that responded to all of the wavelengths in the visual spectrum
• D)animal spirits

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Definitions:

Marginal Cost

The increase in expenditure incurred from making one more unit of a product or service.

Marginal Benefit

The extra benefit or utility received from the consumption or production of an additional unit of a product or service.

Public Goods

Goods or services that are available for consumption by everyone and where use by one individual does not reduce availability to others.

Private Philanthropy

Financial donations made by private individuals or organizations to charitable causes, often aimed at public welfare improvement.