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In the mid-19th century Gregor Mendel carried out breeding experiments on plants. He worked on the characteristics of pea plants. One of his observations was that the inheritance of each characteristic is...

A plosive consonant is an abrupt sound made by closing the mouth then releasing a burst of breath. The plosive consonants in English are B, P, T and D. Their effect, especially when used repeatedly is to ...

A virus is non-living and cannot be treated by antibiotics, they do not have a cell wall. Viruses are generally smaller and require a host to survive. A bacteria can be affected by antibiotics and can sur...

This can be solved using Pythagoras. We know that the pole is 90 degrees to the floor so the height of the pole is the opposite side. The distance between Tim and the pole is therefore the adjacent and he...

First, I would outline the political causes of the Norman Conquest; that Edward the Confessor died with no direct male heir and so multiple claimants arose to contest the succession. These included the gr...