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A city that has very significant economic or financial and/or political influence on an international scale. Features: Major centre for finance, trade, businessMajor centre for culture, media Major centre...

Photosynthetic pigments are found in certain proteins and absorb photons (waves of light) at particular wavelengths. This absorbance causes electrons in the pigments to become excited and they increase in...

Skeletal muscle use glucose in glycolysis to generate ATP, the energy currency of the cell. ATP binds the myosin head in skeletal muscle to displace actin (a protein bound as part of the muscle contractio...

'Cuando' belongs to the group of 'conectores temporales', or, words that help us to express actions in different points of time. 1. If you want to describe an action that is habitual or set in the past yo...

Y₃CL -> [Y₃C]⁺ + L^-(1 mark)Ligand leaves in first step. Can still show ligand as product anion but no need. Also accept any halide as leaving group.
Ste...