An Accidental Spill of a Pesticide Locally Wiped Out the Most

question 18

Multiple Choice

An accidental spill of a pesticide locally wiped out the most abundant species of butterfly in coastal California.Most of the bird species in the area had fed on this butterfly,but they switched prey to moths,and thus the birds showed only a small decrease in population size.The butterflies were a/an:

• A)keystone species, and thus they were driven to extinction very easily.
• B)endangered species.
• C)ecological dominant, but they were not a keystone species.
• D)pioneer species.

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Definitions:

Percentage Of Sales Approach

Financial planning method in which accounts are projected depending on a firm’s predicted sales level.

Net Income

The final profit figure for a company after deducting taxes and expenses from the revenue.

Dividend Payout Ratio

The dividend payout ratio is the fraction of net income a firm pays to its shareholders in dividends, expressed as a percentage of the company's total net income.

Retained Earnings

The portion of net income that is retained by the company rather than distributed to its shareholders as dividends.