Biology confusion! 10 points to best answer!?

[Rose L]

Which stimulus would a flatworm be able to detect?
the sound of splashing water
the smell of prey
the color of a predator
the feel of an approaching rainstorm

[The Positronic Pimp]

"the feel of an approaching rainstorm"

Flatworms don't have functioning auditory sensors (no sound), functioning visual sensors (no vision), functioning olafactory sensors (no sound). They have tactile sensation (ability to sense or 'touch') and may be sensitive enough to detect an atmospheric pressure gradient.

[novangelis]

the smell of prey

[Double Flip Combonation]

i would say the smell of prey... but i am not sure.