Concept:Sperm cells have a tail called a flagellum that enables them to swim.Explanation:The tail of a sperm is a long, whip-like structure called a flagellum.It moves in a wave-like pattern to propel the sperm forward.This type of movement is known as flagellar movement.Muscular, ciliary, or amoeboid movements are not involved in sperm motility.Answer:B. flagellar movement
