How Did the Lohmann (1991) Determine That Sea Turtles Orient

Multiple Choice

How did the Lohmann (1991) determine that sea turtles orient using magnetoreception?

A) He demonstrated that turtles oriented in the opposite direction in a reversed magnetic field.
B) He found magnetite in the sea turtles' brains.
C) He found that turtles oriented in different directions in the North Atlantic gyre.
D) He discovered chryptochromes in the turtles' eyes.
E) He showed that turtles cannot orient properly in total darkness.