Although Some Sharks Close Their Eyes Just Before They Bite

question 68

Multiple Choice

Although some sharks close their eyes just before they bite, their bites are on target. Researchers have noted that sharks often misdirect their bites at metal objects and that they can find batteries buried under sand. This evidence suggests that sharks keep track of their prey during the split second before they bite in the same way that

• A) a rattlesnake finds a mouse in its burrow.
• B) a male silkworm moth locates a mate.
• C) a bat finds moths in the dark.
• D) a platypus locates its prey in a muddy river.
• E) a flatworm avoids light places.

---

Definitions:

Output

The total amount of goods or services produced by a company, industry, or economy within a specific period.

Total Cost

The aggregate cost of producing a given level of output, including both fixed and variable costs.

Output Level

The total quantity of goods or services produced by a firm or industry within a specific period.

Average Fixed Cost

The fixed costs of production divided by the quantity of output produced, which decreases as more units are produced.