You Are Studying Nest Building in Two Bird Species

question 42

Multiple Choice

You are studying nest building in two bird species. Species A builds a long hanging nest while species B builds a short nest that sits on top of tree branches. You interbreed the birds in the lab and then examine the nests that the offspring produce. QTL analysis shows that whether a nest is built to hang or sit is affected by a single genetic locus. The length of the nest is also determined by the same genetic locus. What can you infer about the evolution of this behavior?

• A) It is a complex behavior that evolved out of a combination of two simpler behaviors.
• B) It is a complex behavior where different aspects of the behavior are affected by the same set of genetic instructions.
• C) It is a simple behavior that evolved out of a combination of even simpler behaviors.
• D) It is a learned behavior without a genetic component.

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Definitions:

Level of Activity

A measure used in accounting and production to determine the extent to which a business operation is being utilized, often influencing cost behavior.

Direct Materials Cost

The cost of materials that are an integral part of the finished product.

Units Produced

The total number of units of product a company manufactures over a specific period of time.

Fixed Cost

Costs that do not vary with the volume of production or sales, such as rent, salaries, and insurance.