A 2,000 Acre Coniferous Forest in British Columbia Has 8

question 17

Multiple Choice

A 2,000 acre coniferous forest in British Columbia has 8 species of coniferous trees.
Over 100,000 individuals of each species have been counted by forest managers.A 2,300 acre temperate rain forest in the State of Washington has 12 species of trees, with about 75,000 to 80,000 individuals noted in each species.A similar sized tropical forest in Costa Rica is known to have over 5,000 species of trees.
a.Biologists have counted between 3 and 100 individuals within each species.A Sonoran desert area in Baja California has 150 species of cactus with a range of 5 to 200 individuals counted in each species.
-Which area has the greater species evenness?

• A)the coniferous forest in British Columbia
• B)the temperate rain forest in Washington State
• C)the tropical forest in Costa Rica
• D)The coniferous forest in British Columbia and the temperate rain forest in Washington State both exhibit species evenness higher than the other areas.
• E)There is no way to determine or compare the species evenness in these areas.

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Definitions:

ATC

Stands for Average Total Cost, which is the sum of all production costs divided by the quantity of output produced.

MR = MC

This key term signifies the point where Marginal Revenue (MR) equals Marginal Cost (MC), typically marking the profit-maximizing level of production for a firm.

Economic Profits

The difference marked between entirety of income and the totality of expenditures, accounting for both disclosed and indirect costs.

Monopolistically Competitive

Refers to a market structure where many firms sell products that are similar but not identical, allowing for some degree of market power due to differentiation.