Why are there two forms of reproduction of organisms in nature, and not one?

What is good in some conditions may not be suitable in another situation, so in many species there is an alternation of different forms of reproduction.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.