Experiencia N° 3: POROSIDAD a) En un recipiente con agua introduce una tiza y una esponja.
b) ¿Qué ha sucedido con la tiza y la esponja? Anota tus observaciones.


c) ¿Qué diferencia encuentras al introducir la y al introducir de la esponja?


d) Dibuja la experiencia.
e) ¿A qué conclusión podemos llegar?

Which would prevent a plant from growing

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?