Scenario Kenneth and Catherine Lohmann of the University of North Carolina

question 44

Multiple Choice

Scenario
Kenneth and Catherine Lohmann of the University of North Carolina explored the orientation or direction-finding abilities of loggerhead sea turtle hatchlings under varying magnetic conditions. Hatchlings were placed in a tank of water in a laboratory either in the natural magnetic field of the earth OR in a reversed magnetic field in which north and south were flipped. The researchers then measured the direction that the hatchlings swam. The experiments were carried out in the dark and at night since that is when most newly hatched turtles migrate from their sandy nests into the ocean.
-What can be tested with this experimental design?

• A)Turtles only hatch at night.
• B)Hatchlings prefer sandy beaches to rocky beaches.
• C)Hatchlings have the ability to orient using magnetic fields while swimming.
• D)While crawling across the beach, hatchlings use the earth's magnetic field to find the sea.

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Definitions:

Net Investment

The total amount invested in a project or asset after deducting depreciation or other capital allowances.

MACRS Depreciation

Stands for Modified Accelerated Cost Recovery System, which is a method of depreciation in the U.S. that allows for the accelerated write-off of property under certain conditions.

Straight-Line Depreciation

A method of allocating the cost of a tangible asset over its useful life in equal annual amounts.

Depreciation Schedule

A table that shows the decline in value of an asset over time, which impacts financial and tax reporting.