Which of the Examples Below Provides Appropriate Abiotic and Biotic

question 14

Multiple Choice

Which of the examples below provides appropriate abiotic and biotic factors that might determine the distribution of the species in question?

• A)The amount of nitrate and phosphate in the soil and wild flower abundance and diversity
• B)The number of frost-free days and competition between species of introduced grasses and native alpine grasses
• C)Increased predation and decreased food availability and a prairie dog population after a prairie fire
• D)Available sunlight and increased salinity in the top few meters of the ocean and the abundance and diversity of phytoplankton communities
• E)The pH and dissolved oxygen concentration and the streams in which brook trout can live

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Definitions:

Variable Overhead Rate Variance

The difference between the actual and the standard cost of variable overheads in a production process.

Direct Materials Purchases Variance

The difference between the actual cost of direct materials purchased and the expected (or standard) cost, used for budgeting and cost control purposes.

Standard Costs

Predetermined or budgeted costs for materials, labor, and overhead used for cost control and financial planning.

Materials Quantity Variance

The variance between the real amount of materials consumed in the manufacturing process and the anticipated standard amount.