Which of the Following Is a Difference Between Movement in the Xylem

question 172

Multiple Choice

Which of the following is a difference between movement in the xylem and movement in the phloem?

• A) movement in the phloem is by a pushing action; movement in the xylem is by a pulling action
• B) movement in the phloem occurs through nucleated cells; movement in the xylem occurs through non-nucleated cells
• C) movement in the phloem is always down; movement in the xylem is always up
• D) movement in the phloem starts in the roots; movement in the xylem starts in the leaves
• E) all of these are differences between movement in the xylem and movement in the phloem

Differentiate between fixed and variable costs with examples.

Understand economic decision-making regarding operation, shutdown, staying in business, or going out of business in the short and long run.

Analyze the impact of economies of scale on production efficiency.

Apply principles of cost analysis to fill in cost and output tables.

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