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Transubstantation refers to the Catholic belief that during the Sacrament of the Eucharist - Communion - the bread literally transforms into the body of Christ. It is no longer a metaphor for his body but, i...

A reflex action is an automatic rapid involuntary response, which acts to protect the body from damage. Such as when you touch something extremely hot, you involuntarily remove your hand from the hot object....

An enzyme is known as a biological catalyst. This is because they can speed up reactions by providing an alternative pathway, lowering the activation energy of the reaction. They are normally composed of a p...

Background knowledge DNA - carry the genetic code that determines characteristics of an organism Chromosomes - made from long DNA molecules, many genes all coiled up into a chromosome. A healthy person will ...

My top tip for remembering dates is, grab a family member (mums are least likely to say no) and talk them thorugh your history curriculum. If when you're teaching them, you find big gaps in your knowledge th...