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The preterite is used to describe events that happened only once and have finished.
e.g. Antonio hizo sus deberes = Antonio did his homework (only once)
The imperfect, on the other hand, is ...
The subjunctive (el subjuntivo) is a mood, not a tense and it is used frequently in Spanish. It can be used to describe past events with the imperfect subjunctive, or present events with the present subju...
Mitochondria are one of the three eukaryotic organelles that have a double membrane (along with chloroplasts and the nucleus), two of which are believed to have evolved from bacteria (mitochondria from Pr...
A lipid myelin sheath is wrapped around the axon of the neurone in SEGMENTS. Only the parts of the axon exposed contain Na/K channels that will participate in the conducti...
The concept of the modern individual is dependent on the process that Weber (1948) calls 'disenchantment'. Disenchantment was the process whereby responsibility for the fate of the world is accepted as a ...
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