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Infection and response
Organisation
Cell biology
Biological molecules
Homeostasis and response
Responding to change (a2 only)
Energy transfers (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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1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
Britain & the wider world: 1745 -1901
Inter-war germany
World war one
2n revolution and dictatorship: russia, 1917-1953
World war two & the holocaust
1l the quest for political stability: germany, 1871-1991
The cold war
2j america: a nation divided, c1845-1877
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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24/10/2022
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PROBABILITY: Probability = number of successful outcomes number of total outcomes. all probabilities. expected frequency add to one mutually Can't V/x exclusive events happen at the same time. The "Or" ruce for mutually relative exclusive events : frequency= P(A or B)- P(A) + P(B). "The "or" rule for exclusive events : (P (1A or B) = P(A) - P(A and B) миш PROBABILITY TREES: first choice 5/ -Blue •red. non-mutually red ·blue, total number Second choice. blue ·red The ends of the first and second x probability. are things that Level branches show the different outcomes how times magy the event occurs. number of trials. •The probabilities for each event are! Shown along the arm of each branch, they add up to one.
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