Why are similar adaptive forms formed in the same habitat?

In the struggle for existence, the individuals most adapted to the environment survive. In the same habitat, the living conditions are similar, and accordingly the adaptations are similar (for example, in the water, due to the high density, both fish and whales must have a streamlined body shape, otherwise they will not survive).



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.