In ecological theory, r-selected and K-selected species are classified based on their reproductive strategies and population dynamics. Which of the following statements accurately describes the primary differences between r-selected and K-selected species?

Outbreak species can significantly impact ecological dynamics and community structures. Which of the following characteristics best defines an outbreak species in relation to its intrinsic growth rate (r)?

Unevenly distributed resources in an area will usually result in organisms showing a(n) _____________ dispersion pattern.

Gramática II. Complete each answer with the correct indirect and direct object pronouns and the appropriate verb. Modelo: ¿Le trajiste las camisas a tus hijos? No, se las traje, ¡Qué lio! ¿Le compraste los pañuelos a tu papá? .- Si, [1] compré para su cumpleaños. —Mamá, ¿me vas a dar ese bolso de cuero? .- No, [2] voy a dar, porque se lo compré a tu hermana. ¿ Le diste la camisa a tu amigo? .- Sí, [3] di la semana pasada. ¿ Esas gorras son para los niños?  .- No, [4] voy a vender a ellas. ¿ Me regalaste el vestido verde, verdad? .- Sí, [5] regalé el año pasado.  

The first interest groups in Texas were agrarian.

A firm’s expansion path is:

Starbucks makes espresso drinks using an espresso maker and employees. a. Starbucks uses two machines and two workers to produces 20 drinks/shift (point A). The use of these inputs implies a total cost of $50. If the rental cost of the machines is $15/shift, use your knowledge of isocost curves to find wage. (6 points) b. When the rental rate of espresso machines falls to $10/unit, the firm now uses 3 machines and 1 worker (Point B). Draw the new isocost curve and find associated total cost. (8 points)

Refer to Figure above.  An examination of the production isoquants in the diagram below reveals that:

Jimmy Johns decides to deliver sandwiches by tandem bicycles, as it allows them to deliver sandwiches more efficiently. As seen in the isoquant graph below, each tandem bicycle requires two users in order to operate. a. Jimmy Johns currently delivers 40 subs/hours. It faces a wage rate of $5/hour and a rental rate of bicycles of $10/hours. How many tandem bikes and workers should JJ’s buy to cost minimize? Show this using isocost curves and label the input choice as point A. (8 points) b. Jimmy Johns is operating in the short run due to union contracts. These contracts force them to use L=10. Say that SC Johnson asks Jimmy Johns to supply 50 additional sandwiches to feed its employees. Can Jimmy Johns deliver these sandwiches? What about in the long run? Be sure to label the input choices in the long run clearly in the graph as point B. (8 points) c. Trace out the long run expansion path in the graph above. (4 points) d. Does this production function exhibit increasing returns to scale, constant returns to scale, or decreasing returns to scale? (6 points)

NOTE ON SPELLING & ACCENTS Spelling corrections apply to all applicable vocabulary & grammar activities. Each spelling error will result in minus ½ pt. per error. Accent errors will result in -1/4 pt.