Table of Contents
Explanation of External Fertilization
External fertilization is the process of transferring sperm from a male to a female reproductive tract. This is often done in aquatic environments with fish, amphibians, and reptiles using a special organ called a cloaca. The cloaca is a common opening for the digestive, urinary, and reproductive tracts in these animals.
What is External Fertilization?
External fertilization is the process by which sperm and eggs meet outside of the body. This can happen in water, as in the case of marine animals such as sea turtles, or in air, as in the case of birds.
Mention Some External Fertilization Examples
External fertilization is when the male and female reproductive cells meet outside the body. This can happen in water, as with fish, or in air, as with some insects. External fertilization can also happen when the male and female reproductive cells meet in the female’s reproductive tract.
Features of External Fertilization:-
External fertilization is a process of fertilization that takes place outside the female body. In external fertilization, the male reproductive cells, or sperm, are deposited directly into the female reproductive tract, usually through the vagina.
The sperm then swim through the reproductive tract to the egg, where fertilization occurs. External fertilization used in most forms of animal reproduction, including fish, amphibians, reptiles, birds, and mammals.
One advantage of external fertilization is that it allows sperm to bypass the female’s immune system, which can destroy sperm if they enter the body directly. External fertilization also allows sperm to deposited in a location that is optimal for fertilization, such as near the egg.
Solved Examples
- The number of passengers in a bus is 20 more than the number of students. If the total number of passengers is 154, find the number of students.
We know that the number of passengers is 20 more than the number of students. So, the number of students is 154 – 20 = 134.
Fun Facts on About External Fertilization In Animals
External fertilization is a type of fertilization that takes place outside of the body. This type of fertilization occurs when the male sperm and the female egg meet outside of the body. External fertilization is common in animals, but it is also possible in plants.
External Fertilization in Humans
In humans occurs when sperm and eggs meet outside of the body. This can happen in a number of ways, including sexual intercourse and in vitro fertilization (IVF).
Sexual intercourse the most common way for sperm and eggs to meet, as the sperm deposited in the vagina and travel up the reproductive tract to the egg. If fertilisation occurs, the embryo will travel down the fallopian tubes to the uterus, where it will implant in the uterine wall and grow into a baby.
IVF is a process in which eggs removed from the woman’s ovaries and fertilised with sperm in a laboratory. The embryo then transferred back into the woman’s uterus to grow and develop. IVF often used to treat infertility, as it can help couples who are unable to conceive naturally.
