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There are four main non-specific defence systems, all of which are immediate and the same for all pathogens (hence 'non-specific).1) skin: it acts as a primary defence mechanism as the dry, dead cells on ...

The tense known as "passé composé" uses the verbs "être" and "avoir" in their conjugated form and another verb in order to form the past tense of that verb. This tense shows ...

A parachutist jumps out of a plane at height h. She is subject to air resis- tance with a force of −αv2. The equation of her motion is given bymdv/dt =mg−αv^2 What are the units of α?Calculate the termina...

Batholiths are the largest example of intrusive volcanic features, when magma enters the earths crust without enough pressure to break the surface, it pools to form a roughly spherical lump of rock often ...

Fui al cine ayer y no hice mis deberes.