Final answer:
Cryptobiosis is a state of suspended animation that allows organisms to survive harsh conditions. Tardigrades have the ability to enter cryptobiosis and withstand extreme environmental factors, which has contributed to their success.
Step-by-step explanation:
Cryptobiosis is a state of suspended animation in which an organism can survive extreme environmental conditions. Tardigrades, also known as water bears, are able to enter cryptobiosis and withstand desiccation, very low temperatures, vacuum, high pressure, and radiation. This ability has contributed to the success of tardigrades, allowing them to survive in various habitats and conditions.