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Ionization energy is the energy required to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions. This is the following process;
X _g ---> ...

A metaphor using nature to foreshadow future events.

Lipoproteins are proteins that transport hydrophobic lipids in water based (polar) solutions such as blood. The two main types you need to know about for the IB biology course as part of option D includes...

Blood from the body enters the right atrium of the heart via the vena cava. It then travels into the right ventricle by a combination of gravity and cont...

(x - 7)^2