What features in the structure of reptiles indicate adaptation to life on land?

1) Dry skin without glands prevents water loss.
2) Internal fertilization. Shelled eggs with lots of nutrients.
3) Pulmonary respiration (small-meshed lungs).

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.