When a Species of Bird Preys Upon the Seeds of a Plant

question 36

Multiple Choice

When a species of bird preys upon the seeds of a plant and favors the smallest seeds,

• A)the prey species functions as an agent of natural selection on the predator.
• B)natural selection favors individual plants that produce the largest seeds.
• C)the plants compensate for their losses by producing proportionately more smaller seeds.
• D)the bird species is unaffected when directional selection favors plants that produce the largest seeds.

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Definitions:

AVC

Average Variable Cost; the per unit variable cost associated with producing a good or service.

AFC

Average Fixed Cost; the total fixed costs of production divided by the quantity of output produced, illustrating how fixed costs spread out over produced units.

Short Run

A period in which at least one input in the production process is fixed, limiting the ability to change production levels significantly.

Total Cost

The sum of fixed and variable costs incurred by a business in producing a certain level of output.