Examlex
Which functional group on penicillin forms a complex with transpeptidase of the bacterial wall?
Magnetic Field
An invisible field around magnetic materials where magnetic forces are exerted and can be detected by other magnetic materials or moving electric charges.
North Magnetic Pole
The point on the Earth's surface where geomagnetic field lines are directed vertically downwards, the opposite of the Geographical North Pole.
Compass Needle
A magnetized pointer free to align itself with Earth's magnetic field, used in compasses for navigation.
Earth
The third planet from the Sun, our home planet, or in electrical terms, the reference point in an electrical circuit for the return path of currents or a direct physical connection to the ground.
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