👉 Acholeplasmatales is a group of animals that are characterized by their thick, fibrous exoskeletons, which serve as skeletons for their bodies and help them in various activities such as locomotion, digging, and feeding. This class includes animals like ants, spiders, and crustaceans, which have the ability to change their body shape and size through specialized structures called muscles and ligaments, allowing them to perform a wide range of tasks.