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The following are all good answers to this question: Animals are heterotrophic whereas plants are autotrophic Plants can photosynthesise but animals cannot Plants are sessile (do not move) whereas most an...

The simplest way to think of these prepositions is to think that 'y' refers to 'à' and 'en' refers to 'de'. Therefore if you want to say 'Je vais à Paris' you would then say 'J'y vais'.

If you want...

El mundo ha cambiado muchísimo en los últimos diez años. Las redes sociales casi no existían hace diez años y han tenido un impacto profundo en nuestro estilo de vida. Ahora hablamos más en internet que c...

Well actually, it does. Remember that the velocity is a vector and so is the force. Since F=ma, the acceleration due to a given force points in the same direction as the force itself. The magnetic force i...

Label your two equations 1 and 2 respectively. Make x the subject of the second equation, so x=2-y. Substitute x=2-y into x^2+y^2=9, to give (2-y)^2+y^2=9. Expand the brackets using FOIL to give 4-4y+y^2+...