An Ecologist Is Studying the Painted Turtle Population in a Small

question 109

Multiple Choice

An ecologist is studying the painted turtle population in a small pond. At the beginning of the year, there are 100 individuals. Over the course of a year, 40 turtles are born and 60 die. There is no migration. What is the growth rate (r) of the painted turtle population?

• A) -0.2
• B) 0.2
• C) 0.4
• D) -0.4
• E) 0.6

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Definitions:

Marginal Cost

The additional expenditure required to produce one more unit of a product or service.

Output

The amount of goods or services produced by a firm, industry, or economy within a particular time period.

Marginal Cost

The elevation in comprehensive cost stemming from the creation of one more unit of a good or service.

Fixed Cost

Fixed costs are business expenses that remain constant regardless of the quantity of goods or services produced, such as rent or salaries.