1. Fill in the blanks :
1. In most animals, circulation is brought about by a liquid called
2. Blood moves through tubes called
3. Two useful things that are circulated in all animals are
4. The liquid part of blood is called
5. The substance in red blood cells that links up with oxygen is called
6. Getting rid of waste materials in living beings is called
7. Most liquid wastes are excreted through the
8. In man, carbon dioxide is excreted through
9. Kidneys are connected to the urinary bladder by long tubes called
10. Artificial kidney machines work on the principle of
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Answer:
1. blood
2. arteries and veins
3. blood and hormones
4. plasma
5. Hemoglobin
6. Excretion
7. urethra
8. lungs
9. ureters
10. the diffusion of solutes and ultrafiltration of fluid across a semi-permeable membrane
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