Use the Following to Answer Question

question 20

Multiple Choice

Use the following to answer question:
-(Table: Lunch) Use Table: Lunch.This table shows market demand for picnic lunches for people taking all-day rafting trips on the river.Joe has a firm providing this service,and his marginal cost and average cost for each lunch are a constant $4.If Joe is a monopolist,how many lunches will he produce in the long run?

• A)0
• B)10
• C)20
• D)30

---

Definitions:

Evolutionary Change

A process through which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Directional Selection

A mode of natural selection where an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time.

Selection Differential

The difference in a particular trait between the selected individuals for breeding and the general population, driving evolutionary changes.

Narrow Sense Heritability

The proportion of phenotypic variance that can be attributed to additive genetic variance, important in the prediction of response to selection.