Which of the Following Statements Is True of the Congressional

question 8

Multiple Choice

Which of the following statements is true of the Congressional Budget Office's estimation about environmental taxes and how Americans spend money on gas and utilities?

• A)The poorest 20 percent of Americans spend only 6 percent of their income on gas and utilities.
• B)The richest 20 percent of Americans spend 40.2 percent of their income on gas and utilities.
• C)The poorest 20 percent of Americans spend 21.4 percent of their income on gas and utilities.
• D)The United States collects federal taxes on energy (including the federal gas tax) amounting to $10 per ton.

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Definitions:

Exotoxins

Potent toxins secreted by bacteria that can cause damage to the host by destroying cells or disrupting normal cellular metabolism.

Capsules

In microbiology, a gelatinous covering that encloses some bacteria, enhancing their ability to cause disease.

Sex Pili

Hair-like structures on the surface of bacterial cells that are involved in the transfer of DNA during conjugation.

Chemical Signals

Molecules released by cells to communicate with each other, affecting the behavior or physiology of other cells.