reproductive organs
Earthworms use external fertilization because they release their eggs and sperm into the environment, where they can mix and fertilize externally. This method increases the chances of successful fertilization and allows for greater genetic diversity. Additionally, external fertilization prevents the need for complex reproductive organs required for internal fertilization.
They Have Internal Fertilization
external fertilization is external
External fertilization occurs when sperm and eggs unite in the open, rather than within specialized organs during internal fertilization. Turtles, eagles, and dogs most definitely undergo internal fertilization. Mosquitoes and houseflies, on the other hand, undergo external fertilization.
External fertilization and development
external fertilization
Salmon use external fertilization
Clams utilize external fertilization.
Salmon use external fertilization
they use external fertilization.
Internal fertilization is considered more advantageous than external fertilization because it provides a safer and more controlled environment for the vulnerable eggs and sperm to meet, increasing the chances of successful fertilization. It also allows for the development of specialized structures and behaviors that can enhance reproductive success, such as copulatory organs and courtship rituals. Additionally, internal fertilization helps prevent desiccation of gametes in terrestrial environments and reduces competition from other sperm.
external