What Is the Term for a Gradual Shift in Gene

question 36

Multiple Choice

What is the term for a gradual shift in gene frequencies between neighboring populations?

• A) cline
• B) genotype
• C) phenotype
• D) cluster
• E) allele

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Definitions:

Variable Expense Ratio

A metric that compares variable expenses (costs that change with production levels) to total sales, indicating how much revenue is consumed by variable costs.

Contribution Margin

The amount remaining from sales revenue after variable expenses have been deducted, indicating the contribution towards covering fixed costs and generating profit.

Contribution Format

An income statement variant that divides expenses into variable and fixed groups, emphasizing the contribution margin.

Break-even Point

The point at which total costs and total revenue are equal, leading to neither profit nor loss.