Possible Results:
contrajese
Imperfect subjunctive yo conjugation of contraer.
contrajese
Imperfect subjunctive él/ella/usted conjugation of contraer.

contraer

Las células ancestrales estaban ahora realizando múltiples tareas: eran capaces de generar un potencial de acción que causaba que una porción de la misma célula se contrajese.
Ancestral cells were now multitasking: they were able to generate an action potential that caused a portion of the same cell to contract.
Word of the Day
leftovers