Which Experimental Observation Contributed to a Better Understanding of Translocation

question 96

Multiple Choice

Which experimental observation contributed to a better understanding of translocation in the phloem?

• A) Positive pressure in the xylem forced liquid out of cut aphid stylets.
• B) Positive pressure in the phloem forced liquid out of cut aphid stylets.
• C) Negative pressure in the xylem drew liquid in from cut aphid stylets.
• D) Negative pressure in the phloem drew liquid in from cut aphid stylets.
• E) Positive pressure in the xylem drew liquid in from cut aphid stylets.

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Definitions:

Total Fixed Expense Line

A representation of all fixed costs combined, often used in financial analysis to assess a company's expenses.

Contribution Margin Ratio

The percentage of each sale that contributes to covering fixed costs and generating profit, calculated as contribution margin divided by sales revenue.

Total Volume

The cumulative amount or quantity of something, often referring to production output or sales in a business context.

Unit Contribution Margin

The amount each unit sold adds to profit, calculated by subtracting variable costs associated with a product from the sales price per unit.