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I would always use an example with questions like this -- take the ethics question, '"Utilitarianism is the best approach to environmental ethics". Discuss.' Your first paragraph should be your int...

Stereoisomers are molecules that have the same structural formula, but a different arrangement of the atoms in space.Optical isomers are a type of stereoisomers where the two molecules have non-superimposabl...

The subjuntive is used to express desire, doubt, emotions, probability and the unknown. It is usually used after these common expressions:Quizás (doubt), puede que (posibility), me gustaría que (desire), oja...

The saturation curve of haemoglobin shows positive cooperativity. Initially, the porphyrin ring of the haem prosthetic group in haemoglobin is dome-shaped. When one molecule of oxygen binds one of the four s...

Myelination of an axon makes propagation of action potentials along it much faster. In unmyelinated axons, the action potential is constantly regenerated by active propagation, with the depolarisation causin...