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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## Sea turtle hatchlings ##### This topic has 1 expert reply and 0 member replies ### Top Member ## Sea turtle hatchlings Sea turtle hatchlings leaving their hatching grounds on Florida beaches reach ocean currents by swimming to the northeast, as defined by the north of the Earthâ€™s magnetic field. Florida hatchlings placed in a large indoor tank also swim toward the northeast. But when the tank is surrounded by an artificial magnetic field twice as strong as the Earthâ€™s field and opposite in direction, the hatchlings swim in the direction opposite to that in which they swim without the artificial magnetic field. The information in the statements above most strongly supports which one of the following? (A) Once baby sea turtles reach the open sea, they join groups of adults in the North Atlantic. (B) The direction in which ocean currents flow is determined by the magnetic field of the Earth. (C) Baby sea turtles are able to sense the magnetic field of the Earth. (D) No sea turtle ever returns to the beach where it hatched. (E) If a sea turtle hatches on the coast of Africa, it will swim toward the southwest. Can some experts explain the best option? OA C ### GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2667 messages Followed by: 122 members Upvotes: 1153 GMAT Score: 770 Top Reply lheiannie07 wrote: Sea turtle hatchlings leaving their hatching grounds on Florida beaches reach ocean currents by swimming to the northeast, as defined by the north of the Earthâ€™s magnetic field. Florida hatchlings placed in a large indoor tank also swim toward the northeast. But when the tank is surrounded by an artificial magnetic field twice as strong as the Earthâ€™s field and opposite in direction, the hatchlings swim in the direction opposite to that in which they swim without the artificial magnetic field. The information in the statements above most strongly supports which one of the following? (A) Once baby sea turtles reach the open sea, they join groups of adults in the North Atlantic. (B) The direction in which ocean currents flow is determined by the magnetic field of the Earth. (C) Baby sea turtles are able to sense the magnetic field of the Earth. (D) No sea turtle ever returns to the beach where it hatched. (E) If a sea turtle hatches on the coast of Africa, it will swim toward the southwest. Can some experts explain the best option? OA C The argument summarized: the direction baby turtles swim seems to determined by magnetic fields. Well, that would only make sense if the turtles can actually sense those aforementioned fields. The answer is C _________________ Veritas Prep | GMAT Instructor Veritas Prep Reviews Save$100 off any live Veritas Prep GMAT Course

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