Similarity No. 1. In most bacteria, bacterial flagella are the movers, while in unicellular eukaryotes, flagella, cilia or pseudopodia are used. And in a number of primitive multicellular (trichoplax, ciliary worms) and many planktonic larvae, many movements are carried out due to the work of the cilia of the integumentary epithelium.
Similarity No. 2. Among both unicellular and multicellular organisms, there are those who lead an attached lifestyle (for example, a coral polyp, plants).
Difference. In contrast to unicellular organisms in most multicellular animals, movement is carried out using special organs, the structure of which is peculiar to different animals and depends on the type of locomotion (method of movement, the set of coordinated (coordinated) movements by which movement occurs) and environmental conditions (ground , water, air). Those. multicellular animals have different phenotypes of locomotion – paws, wings, fins, etc., while unicellular animals have flagella and cilia.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.