What Drives the Flow of Water Through the Xylem

question 76

Multiple Choice

What drives the flow of water through the xylem?

• A) passive transport by the endodermis
• B) the number of companion cells in the phloem
• C) the evaporation of water from the leaves
• D) active transport by sieve-tube elements
• E) active transport by tracheid and vessel elements

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Definitions:

Price Level

Refers to the average of all current prices for goods and services in an economy.

Aggregate Quantity

The total amount, sum, or volume of goods or services produced or supplied in an economy at a given overall price level and time.

Keynesian Analysis

This approach focuses on the total spending in the economy and its effects on output and inflation, as per the theories of economist John Maynard Keynes.

Macroeconomic Equilibrium

A state in which aggregate supply equals aggregate demand, leading to an economy operating at its full capacity.