Amphibians and reptiles have a pulmonary sac with cellular walls, while mammals and humans have many tiny
| December 7, 2020 | education
Amphibians and reptiles have a pulmonary sac with cellular walls, while mammals and humans have many tiny lung vesicles. What is the advantage of the latter?
The advantage is due to the fact that the pulmonary vesicles (alveoli) provide a large area of gas exchange in the lungs compared to the cellular walls of the pulmonary sacs.
Due to the greater gas exchange in the lungs and the complete septum between the ventricles in the heart, birds and mammals (including humans) are warm-blooded, which is a great advantage.
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.
