Claytonia Virginica Is a Woodland Spring Herb with Flowers That

question 34

Multiple Choice

Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink.This plant is primarily pollinated by a bee that prefers pink flowers to white flowers.Claytonia with pink flowers have a greater relative fruit set than Claytonia with white flowers.Nevertheless,the percentage of different flower colors remains stable in the study population from year to year.Which of these statements might explain this observation?

• A)Reproductive success does not affect evolution in this species.
• B)Flower color is not heritable,but is instead environmentally determined.
• C)The white flowers have evolved pollinator resistance.
• D)Fitness is primarily determined by fruit set in this species.

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Definitions:

Predetermined Overhead Rate

A calculated figure used for assigning the estimate of manufacturing overhead costs to individual units of production, based on a set rate determined at the beginning of an accounting period.

Direct Materials Cost

The total cost of all the raw materials used in the production of a product or service.

Machine-hours

A measure of the amount of time a machine is operated, used in calculating manufacturing costs and allocating expenses based on machine usage.

Overapplied Overhead

A situation where the allocated or applied manufacturing overhead cost is more than the actual manufacturing overhead cost incurred.