Why amphibians have mixed blood?

Amphibians have mixed blood, because they do not have a septum in their heart (like mammals, birds, reptiles (incomplete septum), which would interfere with the mixing of venous and arterial blood.



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.