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(I would usually take an example question such as: "'Alexander II's reforms were, on the whole unsuccessful,' discuss," and use it to explain.) So here, as with most exam essays, two main...
When the neuron is stimulated, it causes rapid depolarisation of the cell surface membrane. This will not generate an action potential unless it is large enough to exceed the threshold potential...
dilute harmful substancestransport in bloodstream and plantsfor metabolic reactions to occurseparation of substancesabsorption of ions etc.
An organism that can cause disease - e.g. virus, bacterium, fungus
Cette phrase est juste dans sa composition mais il manque des accords. " Les garçons sont arrivé " (être arriver) est conjugué au passé composé. Une règle qu’il faut connaitre en français c’est ...
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