There Are Tubeworms and Clams That Live at the Bottom

question 9

Multiple Choice

There are tubeworms and clams that live at the bottom of the ocean near thermal vents that do not have direct access to sunlight so they derive their energy from

• A)the sun by way of burning fossil fuels like we do with coal and oil.
• B)the sun,but they are deep in the dark ocean and live off dead detritus that sink to them.
• C)chemosynthetic bacteria.
• D)sources not yet known.

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Definitions:

Utility

In economics, utility refers to the total satisfaction received from consuming a good or service.

Diminishing Marginal Utility

The principle that as a person increases consumption of a product, there is a decline in the additional satisfaction or utility that person gains from consuming one more unit of the product.

Demand Curve

A graph showing the relationship between the quantity of a good that consumers want to buy and its price.

Downward Slope

A graphical representation indicating a decrease or decline in value, often used in reference to graphs showing relationships such as demand curves.