In the Pressure Flow Theory,any Part of a Plant That

question 55

Multiple Choice

In the pressure flow theory,any part of a plant that does not carry out photosynthesis is a

• A) source.
• B) sink.
• C) reservoir.
• D) aqueduct.
• E) companion cell.

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Definitions:

Marginal Product

The additional output that is produced by adding one more unit of a certain input while holding other inputs constant.

Picture Framer

A professional or business specialized in enclosing pictures, photographs, or artwork in frames.

Law of Diminishing Returns

An economic principle stating that as investment in a particular area increases, the rate of profit from that investment, after a certain point, will begin to decrease, assuming all other variables are constant.

Short Run

A time period in economics during which at least one input is fixed while others are variable.