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 a 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 is the variable being tested in this experiment?
A) time of hatching
B) time of day
C) magnetic field
D) amount of light

According to my research on the scientific method process, I can say that based on the information provided within the question the variable that is being tested is the magnetic field. Like mentioned in the question the Kenneth and Catherine Lohmann are testing to see if different magnetic fields affect the direction that hatch-lings travel when born.

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madison3395 madison3395 · Answer 2 · 2019-09-22T16:36:02+02:00

Answer:

C) magnetic field

Explanation:

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 a 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. Therefore, the variable being tested in this experiment is magnetic field.