A fence lizard is shown in the image below. The main defense of a fence lizard is camouflage, which only works as long as the lizard stays still. Unfortunately, fire ants, which kill fence lizards, are not fooled by camouflage. When attacked by fire ants, some fence lizards hold perfectly still. Other fence lizards twitch to free themselves from the ants, and then they run away.

Use the above information to complete the following sentences.

Twitching when attacked

increases

a lizard's chances of surviving fire ants. Twitching

decreases

a lizard's chances of hiding from other predators.