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A nerve impulse in the sarcoplasmic reticulum causes calcium ions to move out of it into the muscle cells where it binds to tropmyosin/troponin causing it to move and reveal the actin filament. The myosin...

Research an artist for a certain characteristic about them that inspires your work, such as a theme or technique. Explain how this links to your own work and how this artist will help you develop your own...

In an exam you shouldn't spend too much time on your introduction and conclusion as most of your marks come from the main bulk of the essay. A good place to start with an introduction is looking at the ke...

In Spanish, the direct object pronoun replaces the object you are talking about. In a sentence, it is always placed before the verb. For example, '(Tú)llevas el libro' = you carry the book. This becomes, ...

a) A geostationary orbit is when the satellite remains vertically above the same point on the equator at all all times and consequently has an orbital period of 24 hours. b) Use the equation T^2=4(PI)^2(r...