In unfavourable condition amoeba secrete 3 layered hard covering around it. This phenomenon is known as:

The correct answer is Encystation

Explanation:

• In unfavorable conditions, an amoeba forms a three-layered hard covering around itself through a process known as encystation.
• This protective cyst allows the amoeba to survive harsh environmental conditions such as extreme temperatures, desiccation, or lack of food.
• When conditions become favorable again, the amoeba can exit the cyst and resume its normal activities.