What features of the structure of organ systems allowed the reptile to go to land?

Since reptiles have dry skin, this is what allows them to retain water, moreover, they do not have eggs, but lay eggs.

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.