Dogs are mammals and so have four-chambered hearts.
four.
4
some only have three chambers
Maybe your mean four chambers?
Agnatha, such as lampreys and hagfish, have a two-chambered heart. The heart consists of an atrium and a ventricle, which pump blood through the circulatory system.
i think it is 4 chambers in the Human Heart
some only have three chambers
4 heart chambers
No. The lower chambers of the heart are called the ventricles. The atria are the top chambers of the heart.
No, not all animals have the same number of chambers as humans.
Their are 2 heart chambers.
There are 4 chambers to the heart.