SCIENCE CLASS 7 ONLINE REVISION AND STUDY NOTES
[nextpage title=”HUMAN BODY : Blood Circulatory System, The Heart”] HUMAN BODY THE BLOOD CIRCULATORY SYSTEM Parts of the circulatory system The heart-The pumping organ The blood-The transport fluid. The blood vessel-They are pipes through which the blood flows. Blood components and their functions Plasma-The liquid part of the blood which transport digested food materials, … Read more