How many chambers do animals' hearts have? | Body fluids and circulation | Biology | Khan Academy

Wow physics teacher teaching biology in really awesome way

really good explanation! thank you

Still confusing 😫

So good

Thanks sir

If I could like this video multiple times i would 💛

What about aves

Arigato gojiamas sensei !

blerd

Awesome!

Really helped 🙌❤️

Best best best❤

Thanks for a clear explanation.

Thanks for such an easy explanation 😊😊

🎉❤

So the blood that goes from right atrium to ventricle to lungs is mixed or deoxygenated only (in frogs ) ??