GED Science Practice

What method of reproduction characterizes "Spawning" in animals?

1. Fertilization of eggs inside the body

2. Fertilization of eggs in water

3. Asexual reproduction

4. Fertilization of eggs outside the body

The correct answer is: Fertilization of eggs outside the body

Spawning is characterized primarily by the fertilization of eggs outside of the body. In this reproductive method, many aquatic animals, such as certain fish and amphibians, release eggs and sperm into the water simultaneously. This external fertilization allows for a greater number of offspring to be produced at once, as many eggs and sperm can be released into the environment, increasing the chances of successful fertilization. The focus on external fertilization is significant, as it distinguishes spawning from other reproductive methods where fertilization occurs inside the body. Understanding this mechanism helps highlight the adaptations of various species to their environments, particularly in aquatic ecosystems.