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Mitosis occurs when a eukaryotic cell has exited interphaseIt occurs in 4 stages: Prophase: The spindle fibres appear in the cell, the chromosomes condense and the nuclear membrane of the nucleus disappearsM...

High energy electrons are fired at a target. When the electrons interact with the atoms in the target two things can happen. The first process is called breaking radiation and occurs when the electron is att...

Evaporation occurs when the most energetic particles in a liquid have enough energy to overcome the attractive intermolecular bonds and leave the liquid. Because only the hughest energy particles evaporate t...

human chorionic gonadotropin ( hCG ) is a hormone which is closely associated with the early stages of pregnancy. It is produced by the blastocyst once it has implanted into the endometrium of the uterus. hC...

Heraclitus, the pre-Socratic philosopher noted ‘No man ever steps in the same river twice, for it's not the same river and he's not the same man’. Similarly, every Prime Minister will transform Britain but t...