Fact 1: Some insects can use their antennae to detect sound.

Fact 2: Insects have chemical receptors on their antennae, legs or feet.

Given the two facts above, answer the question "What can insects detect with their feet?" with the following options: 
- movement
 - spectrum
 - parasites
 - Soil movement
 - Light
 - chemicals
 - temperature
 - heat produced


 

      chemicals   