You Get Goose Bumps When You're Cold

question 70

Multiple Choice

You get goose bumps when you're cold. What purpose does that serve?

• A) They thicken the skin, improving insulation.
• B) Nothing really. It's just a reflex.
• C) They puff up fur to trap air that helps retain body heat for mammals that have fur or hair on their skin.
• D) They are a shivering mechanism that helps increase metabolic rate to increase heat production.
• E) Because blood circulation is directed away from the skin when a body is cold, the skin shrinks a little bit and this shows up as goose bumps.

Create component bar graphs to display segmented information within the same categories.

Construct and interpret circle graphs for proportional comparison within categories.

Understand and apply the concepts of future value and present value of annuities and investments.

Calculate future values of investments with different compounding periods (monthly, quarterly, semiannually, annually).

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Definitions:

Railroads

Transportation systems consisting of tracks on which trains travel to carry goods and passengers over long distances.

Nineteenth Century

The period from January 1, 1801, to December 31, 1900, marked by major social, economic, and technological changes worldwide.

Standard Oil

A major American company founded by John D. Rockefeller and associates, dominating the oil industry and later broken up due to antitrust laws.

Petroleum Industry

The sector involved in the exploration, extraction, refining, transportation, and marketing of petroleum products.