![4 Chambers of the Heart with Human Body Stock Illustration - Illustration of signals, atrioventricular: 174971979 4 Chambers of the Heart with Human Body Stock Illustration - Illustration of signals, atrioventricular: 174971979](https://thumbs.dreamstime.com/z/humans-other-mammals-birds-heart-divided-four-chambers-upper-left-right-atria-lower-left-right-174971979.jpg)
4 Chambers of the Heart with Human Body Stock Illustration - Illustration of signals, atrioventricular: 174971979
![5) Four Chambered Heart in Mammals and Birds /Aves | Study of heart in diff. Classes of Vertebrates - YouTube 5) Four Chambered Heart in Mammals and Birds /Aves | Study of heart in diff. Classes of Vertebrates - YouTube](https://i.ytimg.com/vi/YonwZEjMlig/maxresdefault.jpg)
5) Four Chambered Heart in Mammals and Birds /Aves | Study of heart in diff. Classes of Vertebrates - YouTube
![The adult mammalian heart. The adult mammalian heart is made up of four... | Download Scientific Diagram The adult mammalian heart. The adult mammalian heart is made up of four... | Download Scientific Diagram](https://www.researchgate.net/publication/301536324/figure/fig3/AS:667689949335575@1536201097662/The-adult-mammalian-heart-The-adult-mammalian-heart-is-made-up-of-four-chambers-the.png)
The adult mammalian heart. The adult mammalian heart is made up of four... | Download Scientific Diagram
![Mammal Heart Abatomy Flat Material Design Landing Site Isolated on White Background Vector Illustration. Education Info Graphic Stock Vector - Illustration of coronary, cross: 128948750 Mammal Heart Abatomy Flat Material Design Landing Site Isolated on White Background Vector Illustration. Education Info Graphic Stock Vector - Illustration of coronary, cross: 128948750](https://thumbs.dreamstime.com/z/mammal-heart-abatomy-flat-material-design-landing-site-isolated-white-background-vector-illustration-education-info-graphic-128948750.jpg)
Mammal Heart Abatomy Flat Material Design Landing Site Isolated on White Background Vector Illustration. Education Info Graphic Stock Vector - Illustration of coronary, cross: 128948750
![There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart. There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart.](https://d10lpgp6xz60nq.cloudfront.net/physics_images/ARH_NCERT_EXE_BIO_XI_C04_S01_031_S01.png)