Use the Following Information to Answer the Question(s) Below

question 23

Multiple Choice

Use the following information to answer the question(s) below.
A farm pond, usually dry during winter, has plenty of water and aquatic pond life during the summer. One summer, Sarah returns to the family farm from college. Observing the pond, she is fascinated by some six-legged organisms that can crawl about on submerged surfaces or, when disturbed, seemingly "jet" through the water. Watching further, she is able to conclude that the "mystery organisms" are ambush predators, and their prey includes everything from insects to small fish and tadpoles.
-In adult arthropods, the hemocoel ________.

• A) provides space for the internal organs to grow and function
• B) forms a cavity to protect the visceral mass of organs
• C) acts as a hydrostatic skeleton for mobility
• D) secretes the exoskeleton

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Definitions:

Long-Run Supply Curve

A curve that shows the relationship between market prices and quantities supplied over a period when all production inputs are variable.

Mad Cow Disease

A neurological disorder in cattle that can be transmitted to humans, causing a fatal brain disease.

Economic Profits

Profits exceeding the opportunity costs of all resources used by a firm.

Industry Supply Curve

A graphical representation showing the total amount of a commodity that all producers in an industry are willing and able to supply at different prices.