The correct passive voice form of the given sentence "Most lizards rely on camouflage to hide from their enemies" is Camouflage is relied on by most lizards to hide from their enemies.

The active voice of the sentence is "Most lizards rely on camouflage to hide from their enemies." This sentence is in the present tense, which is used to describe an action that is happening now. The passive voice of the sentence is formed by putting the subject of the active sentence after the verb "to be" and the past participle of the main verb. In this case, the subject of the active sentence is "camouflage" and the main verb is "rely." The past participle of "rely" is "relied." So, the passive form of the sentence is "Camouflage is relied on by most lizards to hide from their enemies."

The other options are incorrect because:

• Camouflage has been relied on by most lizards to hide from their enemies. This sentence is in the present perfect tense, which is used to describe an action that happened in the past and is still relevant to the present.
• Camouflage was relied on by most lizards to hide from their enemies. This sentence is in the past tense, but the action of camouflage being relied on is still relevant to the present.
• Most lizards are being relied on by camouflage to hide from their enemies. This sentence is in the present progressive tense, which is used to describe an action that is happening now but is not finished.
• Most lizards are relied on by camouflage to hide from their enemies. This sentence is in the active voice, not the passive voice.