A Biologist Has Been Studying Two Populations of Trout in Montana

question 42

Multiple Choice

A biologist has been studying two populations of trout in Montana for the last 25 years, when the two populations were established from one common population. In the southern population, the fish now have a slightly different mouth shape. But the northern population hasn't changed from the original type. The new shape works well in catching the type of prey common in the habitat of the southern population. Which is the best explanation for the gene differences in the two populations?

• A) The mutation only appeared in the southern population after it was exposed to the new prey.
• B) The gene that produces the variation is probably still present in a small percentage of the northern population, but since there's no advantage to having it, individuals with the variation aren't selected.
• C) The gene that produces the variation used to be present in a few individuals, but since it wasn't advantageous, individuals with that variation died out.
• D) The gene that produces the variation used to be common in both populations, but since it wasn't advantageous in the northern population, the variation died out.

Understand the significance of human resource strategies in developing a culture of innovation.

Comprehend the implications of demographic changes on human resource management.

Recognize the role of human resource audits and performance assessments in organizational improvement.

Comprehend the importance of educational attainment in the workforce.

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Definitions:

Expected Dividend

The dividend payment a shareholder anticipates receiving, based on the company's past dividend history or announcements.

Weighted Average Cost of Capital (WACC)

A calculation of a firm's cost of capital where each category of capital is proportionately weighted, used to assess the average rate a company is expected to pay to its security holders.

Cost of Equity

The return a company requires to decide if an investment meets capital return requirements, often estimated using the Capital Asset Pricing Model (CAPM).

Pre-Tax Cost of Debt

The rate of return that a company pays on its debt, before taking into account tax deductions.