Question

Which environmental stimulus does a flatworm's eyespots detect?
Responses

distinct shapes around them
distinct shapes around them

changes in light or dark
changes in light or dark

a wide variety of colors
a wide variety of colors

changes in movement

Answers

GPT-4o mini
A flatworm's eyespots primarily detect **changes in light or dark**. These simple light-sensitive structures help flatworms respond to their environment by sensing differences in illumination, which can aid in finding shelter and avoiding predators.