When Darwin Covered the Tip of a Grass Seedling with Metal

question 1

Multiple Choice

When Darwin covered the tip of a grass seedling with metal foil and then illuminated it from one side,what happened to the seedling?

• A)It bent away from the directional light.
• B)It did not respond to the directional light.
• C)It grew toward the light,as expected.
• D)It waved back and forth.
• E)It wilted and died.

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Definitions:

Marginal Revenue Product

Additional revenue resulting from the sale of output created by the use of one additional unit of an input.

Capital Inputs

The physical assets, financial resources, and human capital used in the production of goods and services.

Optimal Use

The most efficient, effective, or desirable utilization of resources or goods to achieve the best outcome or return.

Interest Rate

The percentage of a loan charged as cost to the borrower for the use of the money.