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Cell biology
Biological molecules
Organisation
Infection and response
Energy transfers (a2 only)
Homeostasis and response
Responding to change (a2 only)
The control of gene expression (a-level only)
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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1c the tudors: england, 1485-1603
1l the quest for political stability: germany, 1871-1991
Inter-war germany
1f industrialisation and the people: britain, c1783-1885
Britain & the wider world: 1745 -1901
2n revolution and dictatorship: russia, 1917-1953
2j america: a nation divided, c1845-1877
The cold war
World war two & the holocaust
World war one
Medieval period: 1066 -1509
The fight for female suffrage
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
Britain: 1509 -1745
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02/10/2023
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Blood Vessels (pl) artery pulmonary Vena cava night atňum! right ventricle aorta PI vein. left atnum ·left ventricle right side pumps. decxygenated. blood to the lun- gs left side pumps Oxygenated blood to the re- St of the body Artcnics transport oxygenated blood from the heart to the organs. Small lumen no thick walls thick elastic and muscle layer Capillarys connect artenes to veins. Transport blood Close to all cells narrow -• Thin walls Veins transport deoxygena- ted blood to the heart. thin walls values to prevent backflow plasma cames blood cells components of blood Bioconcay ve shape Platelets Clot the blood Bed blood cells transport. oxygen White blood calls depends the body against infection
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