What are blood groups?

What are blood groups and why do we need to transfuse blood? Explained using animation and illustration Video. Watch in HD. ------------------------------------------------------- Support our channel and also get access to awesome perks: Help us making Education Universal: Support us on Patreon: 🚨 OTHER LINKS: Follow our Social Media: YouTube: Facebook: ​ 🚨 HASHTAGS: #FreeAnimatedEducation #Blood #BloodGroups