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Receptors detect and sense changes in their surroundings, called stimuli, e.g. a light receptor.
Effectors produce the response to the stimulus, e.g. a muscle.

These questions should be easy mark gainers as they don't usually require a lot of prior knowledge. However, many students find that they consistently lose all their marks on these questions. With many ex...

I definitely recommed watching with subtitles in the target language. Even if you don't understand everything it is a really good way to recognise vocabulary and improve your accent for certain words. 

There are many ways to keep up your language skills whilst you're out of school. Watching foreign films is a great fun way of improving your listening and accent skills of the target language, reading boo...

The student should think about this in steps starting with:

1. SAN initiates the heartbeat: The sinoatrial node (SAN) initates heart contraction by sending electrical impulses acro...