Animal physiology respiration and circulation 0.0 / 5 ? BiologyRespiration and exerciseIGCSEEdexcel Created by: Carlos52004Created on: 30-04-14 17:32 1089321476 Across 1. you can be given artificial immunity to a disease by (11) 2. tiny air sacs adapted for gaseous exchange (7) 6. when chambers of the heart contract and force the blood out into the arteries, this is called (7) 7. ...brings deoxygenated blood into the heart (4, 4) Down 2. these have thick muscular walls (8) 3. when there is inhalation external intercostal muscles (8) 4. tobacco destroys ... so dirt and bacteria cannot be removed (5) 8. substances move by ... between the blood and the cells through the tissue fluid (9) 9. when there is exhalation, internal intercostal muscles (8) 10. these have walls that are very thin (11)
CIE IGCSE Biology (Definitions) - based on 2015 syllabus 5.0 / 5 based on 1 rating Teacher recommended
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