What is External Fertilization?
External fertilization is a widespread reproductive method that takes place in the aquatic environment. The fertilization method takes place during the process of spawning where the females release their eggs and the male releases sperm in the same area and same time. External fertilization takes place in crabs, shrimps, oysters, squid, sea urchins, and sea cucumbers.
The release of the reproductive material egg and sperm is triggered by the temperature of the water or the duration of the daylight. The fertilization process in the aquatic environment protects the eggs from desiccation and the chances of survival of the species also increase.
Also Read: Difference Between Sperm and Ovum
External Fertilization – An Overview
External fertilization occurs in fish, frogs, and certain invertebrates like sponges. External fertilization is the process of reproduction where the fusion of the male gamete and female gamete takes place outside the body in an external environment. This type of reproduction has various benefits as it has great biodiversity and the chances of survival are also higher. In this article, we will study the process of external fertilisation, examples, features and more.
Table of Content
- What is External Fertilization?
- Characteristics of External Fertilization
- External Fertilization Examples
- External Fertilization Process
- Advantages of External Fertilization
- Disadvantages of External Fertilization
- External Fertilization in Humans
- External Fertilization in Plants
- External Fertilization in Fish
- Difference Between Internal and External Fertilization