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Myelinated and non-myelinated neurones have different structures which is why the speed of action potentials differ. In a Myelinated neurone, a myelin sheath is wrapped around the axon. This myelin sheath...

CO₂ levels in the atmosphere could have increased due to deforestation, as there are now less trees to re-absorb this gas. Emissions of CO₂ may also have risen due to the increased b...

Pendant mes dernières vacances d’été, je suis allé rester chez un ami a moi dans le sud de la France. Il n’habite pas loin de Nice, une cité sur la côte, alors nous avons passés plusieurs jours sur la pla...

tt the brafckTo expand any brackets, simple or double the golden rule to remember is you must multiply everything inside the bracket by everything outside the bracket. Let's run through some examples:2(x+...

(a). Firstly, to work out the product, take 2Na⁺ + SO₂^- --> 2Na₂SO_4...