Fertilization is defined as the fusion of male and female gametes. The fertilization can be internal or external depending on the organisms and environmental conditions.
The correct answer is:
Option A. external fertilization doesn’t require sexual intercourse
The external and internal fertilization can be explained as:
Internal Fertilization:
- Internal fertilization is the process in which egg and sperm cells are united to form a zygote.
- It takes place inside the female body and follows the mode of sexual reproduction. It gives rise to young offspring similar to the parent.
- Examples are humans, monkeys, dogs, and other mammals.
External Fertilization:
- External fertilization refers to the fusion of gametes outside the female's body.
- Aquatic organisms like frogs and fish undergo external fertilization. The organism lay eggs in the water, where the sperms released fuse with the female gamete to give rises to the organism.
- The external fertilization is triggered by the temperature and length of the day.
Thus, external fertilization does not require sexual intercourse, as it takes place outside the female body.
To know more about fertilization, refer to the following link:
https://brainly.com/question/2576806
