Indicate the main features of the difference between birds and reptiles.

These features include: in birds, the forelimbs are transformed into wings; some bones are hollow, and some have grown together to lighten the mass of the skeleton, a more complex brain, more complex behavior; a heart in which the blood is completely divided into venous and arterial.



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.