How is sperm for frogs produced by?

In frogs, sperm is produced in the testes through a process called spermatogenesis. This involves the division and maturation of germ cells into sperm cells, which then undergo a series of transformations to become motile sperm. Once mature, the sperm are stored in the testes until the mating season, when they are released into the environment during external fertilization. During amplexus, the male frog grasps the female, and sperm are expelled to fertilize the eggs as the female lays them.