An Intertidal Species of Sea Star Helps to Maintain the Diversity

question 23

Multiple Choice

An intertidal species of sea star helps to maintain the diversity of the intertidal region by controlling the mussel population. Without the sea star, the mussel population would crowd out other species and take over their territory. The sea star could be called a(n) ____.

• A) indicator species
• B) keystone species
• C) foundation species
• D) aggressive species
• E) repressor species

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Definitions:

Return on Equity

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

Earnings per Share

A financial metric calculated by dividing a company's net income by the number of outstanding shares, indicating how much profit a company makes per share of stock.

Fixed Cost Sources

Expenses that do not change with the level of production or sales, such as rent, salaries, and insurance premiums.

Financial Risk

The chance of incurring financial losses from an investment or business activity.