Why Do Plants Need an Endodermis in Their Roots

question 85

Multiple Choice

Why do plants need an endodermis in their roots?

• A)to control the movement of dissolved ions into the xylem that would otherwise
• B)concentrate in the shoot as a consequence of evaporation
• C)to exclude mycorrhizal symbionts from access to the phloem
• D)to keep air bubbles from entering the xylem
• E)All of these choices are correct.

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Definitions:

Profit Margin Ratio

A financial metric that measures the percentage of revenue that exceeds the cost of goods sold, indicating the efficiency with which a company produces goods.

Gross Margin Ratio

A financial metric that measures the difference between revenue and cost of goods sold, expressed as a percentage of revenue.

Return On Total Assets

Return On Total Assets (ROTA) is a financial metric used to assess a company's profitability by comparing net income to its total assets. It illustrates how efficiently a company uses its assets to generate profit.

Return On Common Stockholders' Equity

A measure of a corporation's profitability by disclosing how much profit a company generates with the money shareholders have invested.