Exhibit 20.1 USE THE INFORMATION BELOW FOR THE FOLLOWING PROBLEM(S)

question 62

Multiple Choice

Exhibit 20.1
USE THE INFORMATION BELOW FOR THE FOLLOWING PROBLEM(S)
December futures on the S&P 500 stock index trade at 250 times the index value of 1187.70. Your broker requires an initial margin of 10% percent on futures contracts. The current value of the S&P 500 stock index is 1178.
-Refer to Exhibit 20.1. Calculate the return on a cash investment in the S&P 500 stock index if the ending index value is 1170 over the same time period.

• A)1.87%
• B)-0.68%
• C)-14.90%
• D)10.36%
• E)None of the above

Identify and describe the ecological role of herbivory in ecosystems.

Explain resource partitioning and its importance in minimizing competition among species.

Describe competitive exclusion and its outcomes on species diversity.

Understand the concept of commensalism and its ecological significance.

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Definitions:

Federal Income Tax

This is a tax levied by the U.S. federal government on the annual earnings of individuals, corporations, trusts, and other legal entities.

Withholding Allowances

Claims made on an employee's W-4 form that determine the amount of federal income tax withheld from their paycheck.

Gross Wages

Gross wages are the total earnings of an employee before any deductions like taxes, retirement contributions, and health insurance premiums are made.

Form 4070

A form used by employees to report their tips to their employer.