In Midsummer,you Are Fishing at a Lake

question 25

Multiple Choice

In midsummer,you are fishing at a lake.You catch the most fish at the inlet of a stream into the lake,where logs and branches are creating turbulent flow and mixing deep water with the shallow water near the surface of the lake.What is the probable reason the fish are congregating in this area?

• A)This area has higher oxygen content,aiding gill oxygen uptake.
• B)This area is warmer,which stimulates metabolism.
• C)This area is cooler,which stimulates metabolism.
• D)This area has a lower oxygen content,which helps to transfer oxygen into the fish's gills.
• E)None of the above apply.

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Definitions:

Comparative Advantage Theory

This theory suggests that countries should specialize in producing and exporting goods in which they have a lower opportunity cost than their trade partners.

Import

The practice of acquiring goods or services from outside a nation's borders for resale purposes.

Agricultural Goods

Products derived from agriculture, including crops and livestock, used for food, fuel, feed, and fiber.

Heckscher-Ohlin Theorem

An economic theory stating that countries export what they can most efficiently and abundantly produce, based on their factor endowments of labor and capital.