A Lophophore Is Used by Ectoprocts and Brachiopods

question 35

Multiple Choice

A lophophore is used by ectoprocts and brachiopods

• A)for locomotion.
• B)at a larval stage.
• C)for feeding.
• D)for sensory reception.
• E)as a skeletal system.

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Definitions:

Consumer Surplus

The differential between the overall amount consumers are willing and financially prepared to spend on a good or service, and what they end up spending.

Producer Surplus

The difference between what producers are willing to accept for a good versus what they actually receive, essentially the extra benefit to producers from selling at the market price.

Deadweight Loss

A loss of economic efficiency that occurs when the equilibrium for a good or a service is not achieved or is unobtainable.

Producer Surplus

The difference between the amount that producers are willing to accept for a good or service and the actual amount they receive.