👉 Synapsida is a group of organisms that are characterized by having two or more cell types, called cells. These cells have different functions and structures, but they often work together to perform specific tasks in living organisms. Synapsids include animals like birds, mammals, reptiles, and insects, as well as plants like fungi, bacteria, and algae. Some examples of synapsid organisms are ants, ants with a segmented body, and the fungus Candida albicans.