Feltmate and Williams (1989) allowed stone nymphs (insects that are dark brown to black in color) an opportunity to settle on either a dark brown or a light gray piece of tile in their aquarium.
A) When the aquarium was dark, the nymphs displayed no preference between the tiles.
B) When the aquarium was dark, the nymphs preferred to settle on the dark brown tile.
C) When the aquarium was lighted, the nymphs displayed no preference between the tiles.
D) When the aquarium was lighted, the nymphs preferred to settle on the light gray tile.

Question

Quizplus · Accepted Answer

When the aquarium was dark, the nymphs could not use visual cues to choose a tile, so they displayed no preference between the dark brown and light gray tiles.

Feltmate and Williams (1989) Allowed Stone Nymphs (Insects That Are