What is a cilia or flagella?

cilia is a hair like structure which helps micro organisms like paramecium move. It is present on their body in large number. Cilia & flagella are the same. But they are called by different names for different micro organisms.asdfadfgqaertqwertg sdfgaert adsfdfgertgeeeeeeeeeeeeeeeeeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrgggggggggggggggggggggggggggggggggggggggggggggasdgagdfgasssdffassssassssssgaaaaaaaaaayyyasssssssss