martes, 10 de noviembre de 2020

The circulatory system

 

CIRCULATORY SYSTEM 


The heart is an organ that acts like a pump. If you've ever wondered how your heart works, these two movies have the answer. 
 
 
 https://blogger.googleusercontent.com/img/proxy/AVvXsEjxKFnSw7qVDE16oVA62TZUHUI5aeu6XPsr6Gl5FX-zc94RoN0DcdUrAuTBSEeyPHR63Qc_3JiVf95v20OZOvIjyUthBHIWnRcC7f7vSlH1azZgaVMV8twlu8BEYlja-vhQZiBX4rECy8BwOMwWBw6H8a9VydwbhoY_NygsEMSt1Q=
 
 

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