CBSE Class 11-science Biology Body Fluids and Circulation
Closed Circulatory System
This video discusses the advantages of closed circulatory system over open ...
Transport in Lower Organisms by Diffusion
This video explains how lower organisms obtain nutrients and oxygen by the ...
Valves in Veins
This video explains why valves are present in veins but not in arteries.
Electrocardiogram (ECG) - Significance
This video explains about ECG and its usefulness in the diagnosis of cardia...
This video talks about the phylum which has a circulatory system closest to...