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Enzymes are biological catalysts. They speed up chemical reactions in all living things, and allow them to occur more easily. They occur in plant cells and animal cells. ...

Eating sweet food improves mood because it can alleviate a dysphoric mood as it provides more energy and can lead to an increase in the levels of serotonin in the brain, which can therefore reduce depress...

Cell differentiation allows a cell to specialize to achieve a specific function Multicellular organisms (eg: humans) have different types of cells which have different functions. For exam...

There are many different techniques so you have to find what works for you. The most important things are time and patience. One technique which I would really recommend is recording yourself reading out ...

Introduction: Mise en place du sujet --> évolution technologique dans le monde, tracer l'évolution, donner quelque chiffres de l'utilisation de la technologie, comment la technologie prend place dans n...