What is the biological meaning of internal fertilization?

Sex cells are protected from external influences, and accordingly the chance of successful fertilization is increased. If development takes place inside the mother’s organism, then the developing organism is also protected from external influences, and it is also constantly supplied with all the necessary substances.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.