|Question 13Verbal

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Certain species, such as Hay's Spring amphipods (Stygobromus hayi), lack functional eyes or ocular organs altogether and rely on other mechanisms for navigation. Licheng Yuan and colleagues investigated such mechanisms in the Chinese red-headed centipede (Scolopendra subspinipes mutilans), which has no organs with photoreceptors (light-detecting cells) but can sense and avoid sunlight. The researchers placed individual specimens in a clear container (container 1) connected to a container covered in black tape (container 2) and then exposed the containers to simulated sunlight. They observed a rapid increase in the temperature of the centipedes' antennae with the onset of exposure, followed by the centipedes' escape to container 2. Based on their observations, the researchers concluded that thermal receptors in the antennae are likely responsible for light detection in the centipedes.
Which additional finding from Yuan and colleagues' study, if true, would best support the researchers' conclusion?
When body segments other than the centipedes' antennae were monitored, the temperature of these body segments were found to increase in the presence of sunlight.
A
The centipedes showed the same tendency to move to container 2 when simulated sunlight was accompanied by artificially reduced temperatures.
B
Chinese red-headed centipedes are more proficient at detecting light than other centipede species are.
C
When their antennae were covered with a reflective material, the centipedes remained exposed in container 1 for longer durations.
D